CDK

Signaling Pathway Map

Research Area

Inhibitory Selectivity

Isoform-specific Inhibitors

CDK Products

All (83) CDK Inhibitors (80) CDK Activators (2) CDK Antagonists (1)

Catalog No.	Information	Product Use Citations	Product Validations
S1116	Palbociclib (PD-0332991) HCl Palbociclib (PD-0332991) HCl is a highly selective inhibitor of CDK4/6 with IC50 of 11 nM/16 nM in cell-free assays, respectively. It shows no activity against CDK1/2/5, EGFR, FGFR, PDGFR, InsR, etc. Phase 3.	Neoplasia, 2021, 23(1):140-148 Nature, 2020, 17 Nature, 2020, 583(7817):620-624	Patient tumor cell sensitivity to combinatorial treatment with histone deacetylase (HDAC)/cyclin-dependent kinase (CDK) inhibitors in 3-D culture. The effect of each drug or drug combination was assessed by fluorescent dye to identify live (green) and dead cells (red). Cells from breast reduction patients were used as non-cancer control in the assay.
S1153	Roscovitine (Seliciclib) Roscovitine (Seliciclib, CYC202) is a potent and selective CDK inhibitor for Cdc2, CDK2 and CDK5 with IC50 of 0.65 μM, 0.7 μM and 0.16 μM in cell-free assays. It shows little effect on CDK4/6. Phase 2.	Elife, 2020, 7;9:e44571 Signal Transduct Target Ther, 2020, 5(1):197 Mol Cell Biol, 2020, 40(4)	Inhibition of CDK5 by roscovitine resulted in defective neuronal migration, which was rescued by expression of GFP-Ndel1 (S251E). a, Granular neurons were treated with roscovitine. Western blotting was performed 24 h after start of culture. Aurora-A and NDEL1 displayed similar expression levels with untreated neurons, whereas the levels of phosphorylated Aurora-A and NDEL1 proteins were decreased after treatment with roscovitine. Relative intensities of the bands of Western blotting are shown at the bottom.
S1145	SNS-032 (BMS-387032) SNS-032 (BMS-387032) has firstly been described as a selective inhibitor of CDK2 with IC50 of 48 nM in cell-free assays and is 10- and 20-fold selective over CDK1/CDK4. It is also found to be sensitive to CDK7/9 with IC50 of 62 nM/4 nM, with little effect on CDK6. SNS-032 (BMS-387032) induces apoptosis. Phase 1.	J Clin Invest, 2020, 134132 Anal Chem, 2020, 92(1):1363-1371 Cell Death Dis, 2020, 11(9):754	HeLa cells were treated for 3h with PIK-75 or SNS-032 at the indicated concentrations. Cells were subsequently lysed and subjected to western blotting. One representative of two independent experiments is shown.
S2768	Dinaciclib (SCH727965) Dinaciclib (SCH727965, PS-095760) is a novel and potent CDK inhibitor for CDK2, CDK5, CDK1 and CDK9 with IC50 of 1 nM, 1 nM, 3 nM and 4 nM in cell-free assays, respectively. It also blocks thymidine (dThd) DNA incorporation. Dinaciclib induces apoptosis through the activation of caspases 8 and 9. Phase 3.	Cell, 2020, 182(3):685-712.e19 Cell, 2020, 182(3):685-712.e19 Cancer Cell, 2020, 13;37(4):599-617 e7	CDK4/6 inhibition has potent cytostatic effect in HER2-positive models. The indicated cells were treated with PD-0332991 (1 uM) or Dinaciclib (1 uM) for 96 hours and plates were stained with crystal violet.
S1230	Flavopiridol (Alvocidib) Flavopiridol (Alvocidib, NSC 649890, HMR-1275) competes with ATP to inhibit CDKs including CDK1, CDK2, CDK4, CDK6, and CDK9 with IC50 values in the 20-100 nM range. It is more selective for CDK1, 2, 4, 6, 9 versus CDK7. Flavopiridol is initially found to inhibit EGFR and PKA. Flavopiridol induces autophagy and ER stress. Flavopiridol blocks HIV-1 replication. Phase 1/2.	Nature, 2020, 580(7801):147-150 Mol Cell, 2020, 7;S1097-2765(20)30269-0 J Clin Invest, 2020, 134132	(C) In vivo treatment of Tg:Pomc-Pttg;Pomc-eGFP embryos with small-molecule CDK inhibitors (50 μM) or 0.2% DMSO as control from 18 to 40 hpf. One hundred to one hundred fifty embryos were treated with each compound. Representative images of live embryos are shown with gross morphology (Right) and pituitary Pomc-GFP-positive cells at higher magnification (Left) at 40 hpf. Embryos exposed to flavopiridol developed early developmental defect before pituitary POMC cell ontogeny occurs. (D) Relative expression of pituitary Pomc-eGFP fluorescence analyzed using Volocity 5.2 software (Improvision; mean ±SE of relative expression, n = 7). (E) R-roscovitine specifically suppresses expansion of pituitary POMC cells overexpressing zPttg from 18 to 48 hpf. Double transgenic Tg:Pomc-Pttg;Prl-RFP embryos were generated by breeding Tg:Pomc-Pttg fish with a previously generated PRL-RFP transgenic line, in which RFP was targeted to pituitary lactotrophs by a zebrafish Prolactin promoter (34). Representative fluorescent microscopy of pituitary POMC-eGFP (a and b) and PRL-RFP (c and d) expression in live Tg:Pomc-Pttg; Pomc-eGFP and Tg:Pomc-Pttg;Prl-RFP embryos treated with 0.2% DMSO (a and c) or 50 μM R-roscovitine (b and d). (F) Relative expression of pituitary POMC-eGFP or PRL-RFP fluorescence were analyzed (mean ±SE of relative expression; n = 10). Results represent one of three similar experiments;P < 0.02 and *P < 0.000005. (Scale bar, 50 μm.)
S6885^New	Ailanthone Ailanthone (AIL, Δ13-Dehydrochaparrinone), a natural anti-hepatocellular carcinoma (HCC) component in Ailanthus altissima, induces G0/G1-phase cell cycle arrest by decreasing expression of cyclins and CDKs and increases expression of p21 and p27. Ailanthone triggers DNA damage characterized by activation of the ATM/ATR pathway. Ailanthone induces apoptosis which is mitochondrion-mediated and involves the PI3K/AKT signaling pathway in Huh7 cells. Ailanthone is also a potent inhibitor of both full-length Androgen Receptor (AR-FL) and constitutively active truncated AR splice variants (AR-Vs, AR_1-651) with IC50 of 69 nM and 309 nM, respectively.
S7773^New	CDKI-73 CDKI-73 (LS-007) is a potent CDK inhibitor in vitro with IC50 of 8.17 nM, 3.27 nM, 8.18 nM, and 5.78 nM for CDK1, CDK2, CDK4, and CDK9, respectively. CDKI-73 induces apoptosis in cancer cells. CDKI-73 is an orally bioavailable and highly efficacious CDK9 inhibitor against acute myeloid leukemia.
S6871^New	Sodium oxamate Sodium oxamate (SO, Aminooxoacetic acid, Oxamic acid) is an inhibitor of lactate dehydrogenase (LDH) that specificly inhibits LDH‑A. Sodium oxamate (SO) induces G2/M cell cycle arrest via downregulation of the CDK1/cyclin B1 pathway and promotes apoptosis through enhancement of mitochondrial ROS generation.
S8783^New	JSH-150 JSH-150 is a highly selective and potent inhibitor of CDK9 with IC50 of 1 nM.
S8981^New	NVP-2 NVP-2, a potent, selective, non-neurotoxic and ATP-competitive cyclin dependent kinase 9 (CDK9) inhibitor with IC50 of 0.514 nM for CDK9/CycT activity and induces cell apoptosis.
S8979^New	THAL-SNS-032 THAL-SNS-032 is a selective Cyclin-dependent kinase 9 (CDK9) degrader PROTAC consisting of a CDK-binding SNS-032 ligand linked to a thalidomide derivative that binds the E3 ubiquitin ligase Cereblon (CRBN).
S8389^New	Trilaciclib Trilaciclib (G1T28, G1T28-1) is a highly potent, selective and reversible cyclin-dependent kinase 4 and 6 (CDK4/6) inhibitor. Trilaciclib inhibits CDK4/cyclin D1 and CDK6/cyclin D3 with IC50 of 1 nM and 4 nM, respectively.
S9605^New	Apcin Apcin (APC inhibitor) is an inhibitor of the E3 ligase activity of the mitotic anaphase-promoting complex/cyclosome (APC/C) that binds to Cdc20 and competitively inhibits the ubiquitylation of D-box-containing substrates.
S8815^New	BSJ-03-123 BSJ-03-123 is a phthalimide-based degrader of cyclin-dependent kinase 6 (CDK6). (PROTAC)
S7969^New	THZ2 THZ2, a THZ1 analog, is a selective inhibitor of CDK7 with IC50 of 13.9 nM. THZ2 efficiently suppresses the clonogenic growth of TNBC cells with IC50 of ~10 nM.
S8903^New	AS2863619 AS2863619 is a small-molecule cyclin-dependent kinase CDK8/19 inhibitor with IC50 of 0.6099 nM and 4.277 nM, respectively. AS2863619 is a potent Foxp3 inducer in T_conv cells.
S0771^New	BRD6989 BRD6989 is a selective inhibitor of CDK8 and CDK19. BRD6989 upregulates IL-10. BRD6989 is an analog of the natural product cortistatin A (dCA).
S8894^New	SR-4835 SR-4835 is a highly selective dual inhibitor of CDK12 and CDK13 with IC50 of 99 nM and Kd of 98 nM for CDK12 and IC50 of 4.9 nM for CDK13. SR-4835 disables triple-negative breast cancer (TNBC) cells. SR-4835 promotes synergy with DNA-damaging chemotherapy and PARP inhibitors.
S7981^New	CCT251545 CCT251545 is a potent, orally bioavailable inhibitor of WNT signaling with IC50 of 5 nM in 7dF3 cells. CCT251545 also act as a selective chemical probe for exploring the role of CDK8 and CDK19 in human disease.	Front Cell Dev Biol, 2020, 8:408
S0500^New	Purvalanol B Purvalanol B (NG-95) is a potent and selective inhibitor of cyclin-dependent kinase (CDK) with IC50 of 6 nM, 6 nM, 9 nM and 6 nM for cdc2-cyclin B, CDK2-cyclin A, CDK2-cyclin E and CDK5-p35, respectively.
S0354^New	Alsterpaullone Alsterpaullone (Alp, 9-Nitropaullone, NSC 705701) is a potent inhibitor of CDK with IC50 of 35 nM, 15 nM, 200 nM and 40 nM for CDK1/cyclin B, CDK2/cyclin A, CDK2/cyclin E and CDK5/p35, respectively. Alsterpaullone also acts as a potent inhibitor of glycogen synthase kinase-3 (GSK-3) with IC50 of both 4 nM for GSK-3α and GSK-3β. Alsterpaullone induces apoptosis by activation of caspase-9. Alsterpaullone has antitumor activity and possesses potential for the treatment of neurodegenerative and proliferative disorders.
S0273^New	CDK2-IN-73 (CDK2-IN-4) CDK2-IN-73 (CDK2-IN-4, CDK2 inhibitor 73) is a potent and selective inhibitor of CDK2 with IC50 of 44 nM for CDK2/cyclin A.
S6777^New	NSC95397 NSC 95397 is a potent, selective Cdc25 dual specificity phosphatase inhibitor with Ki of 32 nM, 96 nM, 40 nM for Cdc25A, Cdc25B and Cdc25C, respectively. NSC 95397 has IC50 of 22.3 nM, 56.9 nM and 125 nM for human Cdc25A, human Cdc25C and Cdc25B, respectively. NSC 95397 inhibits mitogen-activated protein kinase phosphatase-1 (MKP-1) and suppresses proliferation and induces apoptosis in colon cancer cells through MKP-1 and ERK1/2 pathway.
S2642^New	1-Naphthyl PP1(1-NA-PP1) 1-Naphthyl PP1(1-NA-PP 1) is a highly selective and potent pan-PKD inhibitor with IC50 of 154.6 nM,133.4 nM and 109.4 nM for PKD1, PKD2 and PKD3, respectively. 1-Naphthyl PP1 is a selective inhibitor of Src family kinases (v-Src, c-Fyn) and the tyrosine kinase c-Abl with IC50 of 1.0 μM, 0.6 μM, 0.6 μM, 18 μM and 22 μM for v-Src, c-Fyn, c-Abl, CDK2 and CAMK II, respectively.
S1058^New	BI-1347 BI-1347 is small molecule inhibitor of Cyclin-dependent kinase 8(CDK8) with IC50 of 1.1 nM.
S2009^New	Indirubin-3'-monoxime Indirubin-3'-monoxime (Indirubin-3'-oxime) is a selective CDK inhibitor with IC50 of 0.18 μM, 0.44 μM, 0.25 μM, 3.33 μM, 0.065 μM for CDK1-cyclinB, CDK2-cyclinA, CDK2-cyclinE, CDK4-cyclinD1, CDK5-p35,respectively. Indirubin-3'-monoxime is a direct and selective 5-lipoxygenase inhibitor with IC50 of 7.8-10 µM.
S1524	AT7519 AT7519 is a multi-CDK inhibitor for CDK1, 2, 4, 6 and 9 with IC50 of 10-210 nM. It is less potent to CDK3 and little active to CDK7. AT7519 also inhibits GSK3β with IC50 of 89 nM. AT7519 induces apoptosis. Phase 2.	Cell Death Dis, 2020, 11(9):754 Exp Mol Med, 2020, 10.1038/s12276-020-00537-z Biomolecules, 2020, 10(2)	Lysates of MDM treated with five-fold dilutions of the indicated compounds (starting concentration: AT7519, 0.5 mmol/l, roscovitine 4 mmol/l) were subjected to SDS-PAGE, transferred, and immunoblotted with antiphopho-SAMHD1, anti-SAMHD1 and anti-Hsp90 antibodies. MDM, monocyte-derived macrophage; SAMHD1, sterile a motif and HD domain-containing protein-1; SD, standard deviation.
S2679	Flavopiridol HCl Flavopiridol HCl (NSC 649890 HCl, alvocidib, L86-8275, HMR-1275, DSP-2033) competes with ATP to inhibit CDKs including CDK1, CDK2, CDK4 and CDK6 with IC50 of ~ 40 nM in cell-free assays. It is 7.5-fold more selective for CDK1/2/4/6 than CDK7. Flavopiridol is initially found to inhibit EGFR and PKA. Flavopiridol HCl induces autophagy and ER stress. Flavopiridol HCl blocks HIV-1 replication. Phase 1/2.	Haematologica, 2019, 10.3324/haematol.2019.222935 Mol Cancer Ther, 2019, 18(9):1520-1532 Sci Rep, 2019, 9(1):7779	Comparative efficacy of anticancer therapies (Flavopiridol, vincristine, daunorubicin, et al.) in NMC vs non-NMC cell lines. Mean IC50 (± s.e.m.) of the indicated agents in three NMC (PER-403, PER-624, and PER-704) and two non-NMC cell lines (PER-535 and SAOS2), ***P<0.001, unpaired t-test, corrected for multiple testing.
S1249	JNJ-7706621 JNJ-7706621 is pan-CDK inhibitor with the highest potency on CDK1/2 with IC50 of 9 nM/4 nM and showing >6-fold selectivity for CDK1/2 than CDK3/4/6 in cell-free assays. It also potently inhibits Aurora A/B and has no activity on Plk1 and Wee1.	Gland Surg, 2020, 9(2):558-574 EMBO J, 2019, 38(19):e101704 Sci Rep, 2019, 9(1):1897	JNJ-7706621 treatment of tamoxifen-resistant cell lines leads to arrest in the G2 cell cycle phase. M phase cells from the upper right quadrants were quantified relative to total G2/M phase cells. Statistical significant differences from vehicle-treated cells are denoted by asterisks; P<0.05, *P<0.01.
S2672	PF-00562271 Besylate PF-00562271 Besylate (PF-562271) is the benzenesulfonate salt of PF-562271, which is a potent, ATP-competitive, reversible inhibitor of FAK with IC50 of 1.5 nM, ~10-fold less potent for Pyk2 than FAK and >100-fold selectivity against other protein kinases, except for some CDKs. Phase 1.	Proc Natl Acad Sci U S A, 2020, 5;117(18):9896-9905 Cancer Cell, 2019, 35(6):868-884.e6 Hum Gene Ther, 2018, 29(8):886-901
S2621	AZD5438 AZD5438 is a potent inhibitor of CDK1/2/9 with IC50 of 16 nM/6 nM/20 nM in cell-free assays. It is less potent to CDK5/6 and also inhibits GSK3β. Phase 1.	J Clin Invest, 2020, 10.1172/JCI122462 Nat Commun, 2020, 11(1):71 Oncogene, 2020, 10.1038/s41388-020-01403-y	(a) HEK-293 cells expressing V5-EXO1 were synchronized in different phases of the cell cycle. EXO1 was immunoprecipitated (IP) with anti-V5 antibody and Western blotted with anti-phospho-Ser (p-SP) or anti-phospho-Thr (p-TP) CDK substrate antibodies, as indicated. “+AZD” indicates cells pre-treated with the CDK inhibitor AZD5438 prior to analysis. (b) HEK-293 cells expressing V5-EXO1, synchronized in G2, were pre-treated with CDK inhibitors, AZD5438 or Roscovitine, prior to analysis of EXO1 phosphorylation by IP-Western.
S2735	MK-8776 (SCH 900776) MK-8776 (SCH 900776) is a selective Chk1 inhibitor with IC50 of 3 nM in a cell-free assay. It shows 500-fold selectivity against Chk2. Phase 2.	Cancer Res, 2020, 80(18):3841-3854 Int J Mol Sci, 2020, 21(24)E9715 Sci Rep, 2020, 10(1):18924	Hela cell was trypsinized and plated at 30% confluence in DMEM. 16 hours later, MK-8776 (SCH900776) was added at final concentrations of 0, 5, 10 and 25uM. Another 24 hours later, cells were harvested in RIPA with protease and phosphatase inhibitor cocktail. Total protein concentration was measured by BCA method. Lysates equivalent to 20ug total protein were subject to Western Blot, using total- CHK1, pS345-CHK1 and beta-actin (internal control) antibodies.
S2890	PF-562271 PF-562271 is a potent, ATP-competitive, reversible inhibitor of FAK with IC50 of 1.5 nM in cell-free assays, ~10-fold less potent for Pyk2 than FAK and >100-fold selectivity against other protein kinases, except for some CDKs.	J Clin Invest, 2020, 1;130(5):2422-2434 Nat Commun, 2020, 11(1):3282 EMBO Mol Med, 2020, e12010	VEGF and P450 enzyme production in response to FAK or Src inhibitors. MCF10A cells were cultured in LD collagen gels ?vehicle control (V), 10 uM PF-562271 FAK ATP inhibitor (PF) or Src inhibitor PP2 for 24 h. Cells were also lysed and examined for CYP1A1 or CYP4B1 by immunoblot (B and C) and densitometry (D and E). VEGF data are displayed as the mean normalized to the vehicle control, N = 6, 盨EM, p < 0.003 vs control (A). P450 data are displayed as the mean relative to GAPDH and normalized to the control. N > 4, ±SEM, p < 0.05 vs respective control (D and E).
S1487	PHA-793887 PHA-793887 is a novel and potent inhibitor of CDK2, CDK5 and CDK7 with IC50 of 8 nM, 5 nM and 10 nM. It is greater than 6-fold more selective for CDK2, 5, and 7 than CDK1, 4, and 9. PHA-793887 induces cell-cycle arrest and apoptosis. Phase 1.	Cell, 2020, 182(3):685-712.e19 Cell, 2020, 182(3):685-712.e19 Mol Cell Biol, 2020, 40(4)	J558 cells were treated with PHA793887 (0.02–5 umol/L) for 6 hours, after which Western blot analysis was performed to monitor XBP-1s expression. Tub, tubulin.
S1572	BS-181 HCl BS-181 HCl is a highly selective CDK7 inhibitor with IC50 of 21 nM. It is more than 40-fold selective for CDK7 than CDK1, 2, 4, 5, 6, or 9.	Cancers (Basel), 2020, 12(12)E3845 Neuroendocrinology, 2020, 10.1159/000509865 Epigenetics Chromatin, 2019, 12(1):11	Dose-response inhibition of purified human recombinant cyclin-dependent kinase CDK7/cyclin H by inhibitor BS-181 (left panel). Immunoblotting of RNA polymerase II and its phosphorylated form (at Ser5), physiological substrate of CDK7, in MCF-7 cells treated with different doses of inhibitor BS-181 for 24 h (right panel).
S1579	Palbociclib (PD0332991) Isethionate Palbociclib (PD0332991) Isethionate is a highly selective inhibitor of CDK4/6 with IC50 of 11 nM/16 nM in cell-free assays. It shows no activity against CDK1/2/5, EGFR, FGFR, PDGFR, InsR, etc. Phase 3.	Neoplasia, 2021, 23(1):140-148 Nature, 2020, 583(7817):620-624 Acta Neuropathol, 2020, 10.1007/s00401-020-02226-7	HT29 cells were treated with DMSO control, 1 uM selumetinib (Sel) or 5 uM PD0332991 (991) for 24 or 48 h after which time cells were lysed, subjected to SDS/PAGE and immunoblotted with the indicated antibodies.
S2670	A-674563 A-674563 is an Akt1 inhibitor with K_i of 11 nM in cell-free assays, modest potent to PKA and >30-fold selective for Akt1 over PKC.	Sci Signal, 2020, 13(619) Cancers (Basel), 2020, 12(9)E2668 Biomolecules, 2020, 10(2)	B cells were pre-treated with the indicated concentrations of A-674563 for 1h prior to R848 treatment (500 ng/ml). Thymidine incorporation was analyzed 24h later.
S7158	Abemaciclib mesylate (LY2835219) Abemaciclib (LY2835219) is a potent and selective inhibitor of CDK4 and CDK6 with IC50 of 2 nM and 10 nM in cell-free assays, respectively. Phase 3.	Cell, 2020, 182(3):685-712.e19 Cell, 2020, 182(3):685-712.e19 Acta Neuropathol, 2020, 10.1007/s00401-020-02226-7	HT29 cells were treated with DMSO control, 1 uM selumetinib (Sel), 5 uM PD0332991 (991), 0.3 uM LY2835219 (219) or serum-free (SF) medium for 48 h. Whole cell extracts were prepared, fractionated by SDS/PAGE and analysed by Western blotting with the indicated antibodies.
S2014	BMS-265246 BMS-265246 is a potent and selective CDK1/2 inhibitor with IC50 of 6 nM/9 nM in a cell-free assay. It is 25-fold more selective for CDK1/2 than CDK4.	Cancers (Basel), 2020, 12(6):E1637 Nature, 2019, 10.1038/s41586-019-1607-3 Nature, 2019, 574(7777):268-272
S2742	PHA-767491 PHA-767491 (CAY10572) is a potent ATP-competitive dual Cdc7/CDK9 inhibitor with IC50 of 10 nM and 34 nM in cell-free assays, respectively.It displays ~20-fold selectivity against CDK1/2 and GSK3-β, 50-fold selectivity against MK2 and CDK5, 100-fold selectivity against PLK1 and CHK2.	Mol Cell, 2020, S1097-2765(20)30785-1 Cell Rep, 2020, 7;31(1):107485 Mol Cancer Ther, 2020, 19(5):1183-1196	Viability at 250 nM and CI vs. Fa for U2932 following 24 hours exposure to ABT-199, additional drugs with activity against CDK9, or the combinations. Mean of quadruplicates ± SEM.
S2751	Milciclib (PHA-848125) Milciclib (PHA-848125) is a potent, ATP-competitive CDK inhibitor for CDK2 with IC50 of 45 nM. It is >3-fold more selective for CDK2 than CDK1, 2, 4, 5, and 7. Milciclib (PHA-848125) induces cell death through autophagy. Phase 2.	Cancer Discov, 2020, 1 pii: CD-19-1030 J Pharm Biomed Anal, 2020, 190:113516 Cell Rep, 2020, 32(2):107897	Cell survival curves of A549 cells treated with increasing doses of A-674563, PHA-848125, and H89 2HCl for 72 hours. Cells were incubated with cell proliferation reagent WST-1 for 2 hours and absorbance was read at 450nm. Optical density was then normalized to a 1% DMSO control. The data is presented as the percentage of cell survival relative to the DMSO control ± SEM of three independent trials. Statistical significance was determined with multiple T-tests using the Holm-Sidak method without assuming a consistent SD and is represented by *p<0.05.
S2688	R547 R547 (Ro 4584820) is a potent ATP-competitive inhibitor of CDK1/2/4 with K_i of 2 nM/3 nM/1 nM. It is less potent to CDK7 and GSK3α/β, while inactive to other kinases. Phase 1.	Cell, 2020, 182(3):685-712.e19 Cell, 2020, 182(3):685-712.e19 Cancer Res, 2019, 10.1158/0008-5472.CAN-18-2486
S1949	Menadione Menadione(Vitamin K3), a fat-soluble compound, is an inhibitor of Cdc25 phosphatase and mitochondrial DNA polymerase γ (pol γ), used as a nutritional supplement.	Cell Mol Immunol, 2020, 10.1038/s41423-020-00545-z Am J Cancer Res, 2020, 1;10(5):1442-1454 Life Sci, 2020, 242:117159
S7198	BIO BIO (GSK-3 Inhibitor IX, 6-bromoindirubin-3-oxime) is a specific inhibitor of GSK-3 with IC50 of 5 nM for GSK-3α/β in a cell-free assay, shows >16-fold selectivity over CDK5, also a pan-JAK inhibitor with IC50 of 30 nM for Tyk2. BIO induces apoptosis in human melanoma cells.	Cell Stem Cell, 2020, S1934-5909(20)30541-5 Stem Cells, 2020, 10.1002/stem.3274 Front Immunol, 2020, 27;11:438	Lysates of HCT116p53KO cells were harvested 24 hs after treatment with different GSK3 inhibitors and GSK3A/B activation/inactivation checked by western blot: a mix of pSer21-GSK3A and pSer9-GSK3B antibodies and antibody cross-reacting with both pTyr279-GSK3A and pTyr216-GSK3B were used to assess the specificity of the inhibitor for GSK3A. BIO: 6-bromoindirubin-3'-oxime, TWS: TWS119, SB2: SB216763, SB4: SB415286.
S7440	Ribociclib (LEE011) Ribociclib (LEE011) is an orally available, and highly specific inhibitor of CDK4 and CDK6 with IC50 of 10 nM and 39 nM. Phase 3.	Nat Commun, 2020, 11(1):5305 Genome Med, 2020, 18;12(1):17 Elife, 2020, 7;9:e44571	Analysis of apoptosis in leukemia cells induced by LEE011. Annexin V staining of cells following 48-h treatment with LEE011 at 2 or 5 µM compared with DMSO controls. Following 5-µM LEE011 treatment, the K562 apoptotic cell percentage was 5.9 ± 0.75 vs. 1.2 ± 0.66% for the DMSO group, P = 0.001; in MV4-11 cells, the apoptotic cell percentage was 24.2 ± 3.06 vs. 0.53 ± 0.40% for the DMSO group, P = 0.005; in U937 cells, the apoptotic cell percentage was 9.9 ± 2.81 vs. 0.57 ± 0.42% for the DMSO group, P = 0.027; in HL-60 cells, the apoptotic cell percentage was 28.23 ± 6.01 vs. 0.9 ± 0.8% for the DMSO group, P = 0.015; in THP-1 cells, the apoptotic cell percentage was 1.76 ± 0.4 vs. 1.56 ± 0.45% for the DMSO group, P = 0.59; in CCRF cells, the apoptotic cell percentage was 13.77 ± 3.16 vs. 1.2 ± 0.36% for the DMSO group, P = 0.019; in NB4 cells, the apoptotic cell percentage was 12.1 ± 1.35 vs. 0.86 ± 0.25% for the DMSO group, P = 0.004; and in SHI-1 cells the apoptotic cell percentage was 12.6 ± 2.81 vs. 1.87 ± 0.75% for the DMSO group, P = 0.017. These analyses were repeated three times. P < 0.05; *P < 0.01
S7114	NU6027 NU6027 is a potent ATR/CDK inhibitor, inhibits CDK1/2, ATR and DNA-PK with K_i of 2.5 μM/1.3 μM, 0.4 μM and 2.2 μM, enter cells more readily than the 6-aminopurine-based inhibitors.
S7357	PF-562271 HCl PF-562271 HCl is the hydrochloride salt of PF-562271, which is a potent, ATP-competitive, reversible inhibitor of FAK with IC50 of 1.5 nM, ~10-fold less potent for Pyk2 than FAK and >100-fold selectivity against other protein kinases, except for some CDKs. Phase 1.	Cancers (Basel), 2020, 12(12)E3708 Cell Cycle, 2020, 14:1-13 Cancer Med, 2020, 10.1002/cam4.3621	VEGF and P450 enzyme production in response to FAK or Src inhibitors. MCF10A cells were cultured in LD collagen gels ?vehicle control (V), 10 uM PF-562271 FAK ATP inhibitor (PF) or Src inhibitor PP2 for 24 h. Cells were also lysed and examined for CYP1A1 or CYP4B1 by immunoblot (B and C) and densitometry (D and E). VEGF data are displayed as the mean normalized to the vehicle control, N = 6, 盨EM, p < 0.003 vs control (A). P450 data are displayed as the mean relative to GAPDH and normalized to the control. N > 4, ±SEM, p < 0.05 vs respective control (D and E).
S8058	Riviciclib hydrochloride (P276-00) Riviciclib hydrochloride (P276-00) is a novel CDK1, CDK4 and CDK9 inhibitor with IC50 of 79 nM, 63 nM and 20 nM, respectively. Riviciclib hydrochloride (P276-00) induces apoptosis. Phase 2/3.	Mol Cell, 2020, 77(6):1322-1339 Proc Natl Acad Sci U S A, 2019, 116(27):13374-13383 Cell Chem Biol, 2018, 10.1016/j.chembiol.2017.11.007	Predicted anticancer drugs inhibit the growth of neuroendocrine tumor cells. Multi-tyrosine kinase inhibitors sorafenib, sunitinib, regorafenib and cabozantinib effectively inhibit GOT1 cell growth with IC50 values in the micromolar range. Inhibitors of AKT (MK-2206), HDAC (vorinostat), HSP90 (alvespimycin) and CDK4/9 (P276-00) also inhibited GOT1 cell growth at micromolar concentrations, whereas inhibition of PARP1 (veliparib) had no effect. GOT1 cells were treated with anticancer drugs at various concentrations for 4 days. Cell viability was estimated using AlamarBlue®. Data points are the mean values of three individual experiments carried out in triplicate (n=9). Fitting of curves was done in GraphPad Prism software v6.04 using log (inhibitor) vs response nonlinear fit with variable slope. IC50 was interpolated at Y=50 and bars denote ±s.d.
S6537	CVT-313 CVT-313 is a potent CDK2 inhibitor with an IC50 of 0.5 microM in vitro. It has no effect on other, nonrelated ATP-dependent serine/threonine kinases.
S8727	Atuveciclib (BAY-1143572) Atuveciclib (BAY-1143572) is potent and highly selective PTEFb/CDK9 inhibitor with IC50 values of 13 nM for CDK9/CycT and the ratio of IC50 values for CDK2/CDK9 is about 100. Outside the CDK family, It inhibits GSK3 kinase with IC50 values of 45 nM and 87 nM for GSK3α and GSK3β respectively.	Cell Chem Biol, 2020, S2451-9456(20)30380-9 Front Cell Dev Biol, 2020, 8:579658 Mol Cancer Ther, 2019, 10.1158/1535-7163.MCT-19-0451
S7549	THZ1 2HCl THZ1 is a covalent CDK7 inhibitor which has the unprecedented ability to target a remote cysteine residue located outside of the canonical kinase domain, providing an unanticipated means of achieving selectivity for CDK7.	Cell, 2020, 182(3):685-712.e19 Cell, 2020, 182(3):685-712.e19 EMBO Mol Med, 2020, e11099	One and three days after differentiation induction, protein level of Myh3 and Myogenin were analyzed by western blot.
S7320	TG003 TG003 is a potent and ATP-competitive Cdc2-like kinase (Clk) inhibitor with IC50 of 20 nM, 200 nM, and 15 nM for Clk1, Clk2, and Clk4, respectively. No inhibitory effect on Clk3, SRPK1, SRPK2, or PKC.	Nat Commun, 2020, 22;11(1):1931 Gastric Cancer, 2020, 24 Blood Adv, 2019, 3(21):3214-3227
S8568	G1T38 G1T38 (Lerociclib) is a novel, potent, selective, and orally bioavailable CDK4/6 inhibitor with IC50 values of 0.001 μM, 0.002 μM and 0.028 μM for CDK4, CDK6 and CDK9 respectively.
S5316	NU2058 NU2058 (O(6)-Cyclohexylmethylguanine) is an inhibitor of CDK2 with IC50 value of 17 μM in an isolated enzyme assay. It also potentiates melphalan (DMF 2.3), and monohydroxymelphalan (1.7), but not temozolomide or ionising radiation.
S6531	Bohemine Bohemine is a CDK inhibitor with IC50s of 4.6, 83, and 2.7 μM for Cdk2/cyclin E, Cdk2/cyclin A, and Cdk9/cyclin T1, respectively.
S6540	NG 52 NG-52 is a tri-substituted purine that binds to the ATP-binding site of yeast cyclin-dependent kinases, inhibiting Cdc28p and Pho85p with IC50s of 7 and 2 μM, respectively.
S7747	Ro-3306 RO-3306 is an ATP-competitive, and selective CDK1 inhibitor with K_i of 20 nM, >15-fold selectivity against a diverse panel of human kinases. RO-3306 enhances p53-mediated Bax activation and mitochondrial apoptosis.	Cell Res, 2020, 10.1038/s41422-020-0357-y Mol Cell, 2020, 22 pii: S1097-2765(20)30231-8 Nat Commun, 2020, 11(1):4338	HeLa cells were untreated or treated with either colcemid (10 μg/ml for 16 h), RO-3306 (9 μM for 16 h), or both colcemid and RO-3306, as indicated. Cells were then lysed, and proteins were detected by Western analysis.
S7992	LDC4297 (LDC044297) LDC4297 is a novel CDK7 inhibitor (IC50=0.13±0.06 nM for CDK7 versus IC50s between 10 nM and 10,000 nM for all other analyzed CDKs).	Mol Cell, 2019, 74(4):674-687
S8520	Senexin A Senexin A is a potent and selective inhibitor of CDK8 and its nearest relative, CDK19 with Kd values of 0.83 μM and 0.31 μM for CDK8 and CDK19 ATP site binding, respectively.
S8387	MSC2530818 MSC2530818, a CDK8 inhibitor with the IC50 of 2.6 nM, displays excellent kinase selectivity, biochemical and cellular potency, microsomal stability, and is orally bioavailable.	Nat Commun, 2019, 10(1):4741
S8722	ICEC0942 (CT7001) ICEC0942 (CT7001) is a new, orally bioavailable CDK7 inhibitor with an IC50 of 40nM. The IC50 values for CDK1, CDK2, CDK5 and CDK9 were 45-, 15-, 230- and 30-fold higher. ICEC0942 (CT7001) promotes cell cycle arrest and apoptosis.
S4743	Wogonin Wogonin (Vogonin), a natural and biologically-active flavonoid found in plants, is an inhibitor of CDK9 and does not inhibit CDK2, CDK4 and CDK6 at doses that inhibit CDK9 activity; Also inhibits N-acetyltransferase.	Exp Ther Med, 2015, 10(3):1066-1070	Effect of Wogonin on the translocation and transcriptional activity of NFATc1. U2OS cells stably transfected with EGFP-NFATc1, RANKL (100 ng/ml) and different concentrations of Wogonin (5.0, 1.0, 0.1 and 0.0 mM) were added and incubated for 24 h. The IN Cell™ Analyzer 1000 was used to observe the translocation of NFATc1. (A) DMSO was used as a control. RANKL (100 ng/ml) significantly stimulated the translocation of NFATc1; Wogonin (5 mM) significantly decreased the translocation of NFATc1 induced by RANKL (magnification, x200). (B) Statistics showed that Wogonin could decrease the translocation of NFATc1 into the nucleus induced by RANKL in a concentration-dependent manner. RAW264.7 cells were transfected with pGL3-promoter-NFATc1-RE, and then RANKL (100 ng/ml) and different concentrations of Wogonin (5.0, 1.0, 0.1 and 0.0 mM) were added and incubated for 24 h. (C) RANKL significantly increased the transcriptional activity of NFATc1 and Wogonin decreased the transcriptional activity of NFATc1 induced by RANKL in a concentration-dependent manner. n=3; P<0.05 and **P<0.001 compared with the RANKL group. NAFTc1, nuclear factor of activated T cells c1; EGFP, enhanced green fluorescent protein; DMSO, dimethylsulfoxide, RANKL, receptor activator of nuclear factor κB ligand; RE, response element.
S7793	Purvalanol A Purvalanol A is a potent, and cell-permeable CDK inhibitor with IC50 of 4 nM, 70 nM, 35 nM, and 850 nM for cdc2-cyclin B, cdk2-cyclin A, cdk2-cyclin E, and cdk4-cyclin D1, respectively. Purvalanol A induces endoplasmic reticulum stress-mediated apoptosis and autophagy.	Aging (Albany NY), 2020, 12(19):19022-19044 Gland Surg, 2020, 9(2):558-574 FEBS J, 2019, 286(5):963-974	After 12 h PAB treatment, cells were treated with PAB in the absence and presence of RO-3306 or purvalanol A for 12 h and 36 h. (A) Expressions of p-histone h3 were detected by western blot.
S7511	LY2857785 LY2857785 is a type I reversible and competitive ATP kinase inhibitor against CDK9(IC50=0.011 μM) and also inhibits other transcription kinases CDK8(IC50=0.016 μM) and CDK7 (IC50=0.246 μM).
S8100	K03861 K03861 (AUZ 454，AUZ454) is a type II CDK2 inhibitor with K_d of 50 nM, 18.6 nM, 15.4 nM, and 9.7 nM for CDK2(WT), CDK2(C118L), CDK2(A144C), and CDK2(C118L/A144C), respectlvely.	Cancers (Basel), 2020, 12(6):E1637 Mol Oncol, 2020, 14(12):3153-3168 J Virol, 2019, 93(12)
S7648	OTS964 OTS964 is a potent TOPK inhibitor with high affinity and selectivity and IC50 value is 28 nM. OTS964 is also a potent inhibitor of the cyclin-dependent kinase CDK11 with Kd of 40 nM. OTS964 treatment activates autophagy in glioma cells and induces apoptosis of human lung cancer cells in mouse xenografts.
S8809	MC180295 MC180295 is a novel potent and selective CDK9 inhibitor with an IC50 of 5 nM and is at least 22-fold more selective for CDK9 over other CDKs.
S7509	ML167 ML167 (CID 44968231) is a highly selective Cdc2-like kinase 4 (Clk4) inhibitor with IC50 of 136 nM, >10-fold selectivity for closely related kinases Clk1-3 and Dyrk1A/1B.	SLAS Discov, 2018, 23(8):850-861
S7917	Kenpaullone Kenpaullone is an ATP-competitive inhibitor of cyclin-dependent kinases (CDKs). It also inhibit glycogen synthase kinase 3β (GSK3β) with IC50 of 0.23 µM.	Cell, 2020, 182(3):685-712.e19 Cell, 2020, 182(3):685-712.e19 Antiviral Res, 2019, 170:104572	Effect of Kenpaullone on GSK-3β and CDKs. (A and B) Naïve CD4+ T cells were stimulated with anti-CD3/CD28 (TCR), TGF-β (5 ng/ml) and IL-6 (20 ng/ml) in the presence of the indicated Kenpaullone (Kenp) concentrations for 30 min (A) or 24 h (A and B).
S8161	ON123300 ON123300 is a potent and multi-targeted kinase inhibitor with IC50 of 3.9 nM, 5 nM, 26 nM, 26 nM, 9.2 nM and 11nM for CDK4, Ark5/NUAK1, PDGFRβ, FGFR1, RET (c-RET), and Fyn, respectively.	Molecules, 2020, 8;25(9) pii: E2220
S5716	Abemaciclib Abemaciclib (LY2835219) is a cell cycle inhibitor selective for CDK4/6 with IC50 of 2 nM and 10 nM in cell-free assays, respectively.	Cancer Cell, 2020, 37(3):340-353 Acta Neuropathol, 2020, 10.1007/s00401-020-02226-7 Theranostics, 2020, 10(23):10619-10633
S7461	LDC000067 LDC000067 (LDC067) is a highly selective CDK9 inhibitor with IC50 of 44 nM, 55/125/210/ >227/ >227-fold selectivity over CDK2/1/4/6/7.	Mol Cell, 2020, 77(6):1322-1339 Cell Rep, 2020, 7;31(1):107485 Cancers (Basel), 2020, 12(6):E1637	Inhibition of CDK9 leads to a decrease in RNApol II activity and repetitive element expression. HEK293T cells were treated with DMSO control and the indicated amounts of LDC000067, a CDK9 inhibitor, for a total of 3 h. (A) Immunoblots showing the levels of phosphorylated RNApol II largest subunit (pRPB1), total RPB1 and GAPDH, in response to different doses of CDK9 inhibitor. (B) Quantification of immunoblots from 2 independent experiments in which each condition was performed in duplicates, and in which pRPB1 and total RPB1 protein levels were normalized to GAPDH or as pRPB1/Total RPB1 ratio. (C, D) qRT-PCR analyses show a significant response to CDK9 inhibition of repetitive elements belonging to the LTR (C) and SINE (D) classes. Statistical analyses were performed to compare all groups using a One-way ANOVA followed by Bonforreoni’s multiple comparison test, P < 0.05, *P < 0.01, #P < 0.0001.
S8730	BAY 1251152 BAY1251152 is a potent PTEFb/CDK9 inhibitor with an IC50 value of 3 nM for CDK9 and an at least 50-fold selectivity against other CDKs in enzymatic assays. BAY1251152 binds to and blocks the phosphorylation and kinase activity of CDK9, thereby preventing PTEFb-mediated activation of RNA Pol II and leading to the inhibition of gene transcription of various anti-apoptotic proteins.
S7636	SU9516 SU 9516 is a 3-substituted indolinone CDK inhibitor with IC50 of 22 nM, 40 nM, and 200 nM for CDK2, CDK1, and CDK4, respectively.	Cell Chem Biol, 2019, 26(1):121-130 Biotechnol Lett, 2017, 39(7):951-957	a, Porcine blastocysts derived from the SU9516-treated group. Scale bar 100 μM. b, An image of a 7 day SU9516- treated parthenogenetically activated porcine embryo stained with Hoechst 33342. Scale bar 100 μM. c, Tetraploid karyotype from SU9516 treated blastocysts. Scale bar 50 μM. d, Porcine blastocysts derived from the cytochalasin B (CB)-treated group. Scale bar 100 μM. e, An image of a 7 day CB-treated parthenogenetically activated porcine embryo stained with Hoechst 33342. Scale bar 100 μM. f, diploid karyotype from CB treated blastocysts. Scale bar 50 μM
S7808	AT7519 HCl AT7519 HCl is a multi-CDK inhibitor for CDK1, 2, 4, 6 and 9 with IC50 of 10-210 nM in cell-free assays. It is less potent to CDK3 and little active to CDK7. Phase 2.	Exp Mol Med, 2020, 10.1038/s12276-020-00537-z Proc Natl Acad Sci U S A, 2019, 116(10):4316-4325 Iran J Pharm Res, 2019, 18(Suppl1):119-131	(c) Effect of AT7519 treatment on RNA pol II occupancy at the PRCC gene. MM1.S cells were treated with either DMSO vehicle (blue) or 2 μM AT7519 (brown) for 6 h, followed by RNA pol II ChIP-seq analysis. Twenty-fold magnifications of the rpm/bp scale of these gene tracks are shown in the right panel to show the difference in reads for elongating RNA pol II. TR, RNA pol II traveling ratio. (d) Genome-wide binding average RNA pol II (ChIP-seq) on active promoters and gene bodies following treatment of MM1.S cells with DMSO vehicle (blue) or 2 μM of AT7519 (brown) for 6 h. Magnification of the rpm/bp scale at gene bodies is shown in the inset. The inset includes RNA polymerase II traveling ratio distributions (TR, mean) derived from MM1.S cells treated with DMSO (blue) or 2 μM AT7519 (red). (e) Chemical structures of the pan-CDK inhibitor AT7519 and its biotinylated counterpart bio-AT7519. (f) In vitro kinase assays with recombinant cyclin T-CDK9 complex in the presence of increasing concentrations of AT7519 or bio-AT7519. The derived IC50 values for each compound are shown. (g) Effect of AT7519 and bio-AT7519 on MM1.S cell proliferation. Cells were treated with varying concentrations of drug for 72 h as indicated. The derived EC50 values for each compound are shown.
S8863	YKL-5-124 YKL-5-124 is a potent, selective and covalent CDK7 inhibitor with an IC50 of 9.7 nM, 1300 nM and 3020 nM for inhibiting CDK7/Mat1/CycH, CDK2 and CDK9 respectively. It displays biochemical and cellular selectivity for CDK7 over CDK12/13.
S8719	AZD4573 AZD4573 is a potent inhibitor of CDK9 (IC50 of <0.004 μM) with fast-off binding kinetics (t_1/2 = 16 min) and high selectivity versus other kinases, including other CDK family kinases.	Cell Chem Biol, 2020, S2451-9456(20)30380-9 Cancer Cell, 2020, 38(6):872-890.e6
S7547	XL413 (BMS-863233) XL413 (BMS-863233) is a potent and selective cell division cycle 7 homolog (CDC7) kinase inhibitor with IC50 of 3.4 nM, showing 63-, 12- and 35-fold selectivity over CK2, Pim-1 and pMCM2, respectively. Phase 1/2.	Cell, 2020, 182(3):685-712.e19 Cell, 2020, 182(3):685-712.e19 Cancers (Basel), 2020, 12(9)E2498	The protein levels of p-MCM2 and p-ERK in NOK, HN6 and Cal27 cells treated with 0, 10 and 20 μMXL413 were detected by western blotting.
S8840	SEL120 (SEL120-34A) hydrochloride SEL120 (SEL120-34, SEL120-34A) is a novel inhibitor of Cyclin-dependent kinase 8 (CDK8) with IC50 values of 4.4 nM and 10.4 nM for CDK8/Cyclin C and CDK19/CyclinC respectively.
S6595	THZ531 THZ531 is a selective covalent inhibitor of CDK12 and CDK13 with IC50 values of 158 and 69 nM, respectively.	Neuroendocrinology, 2020, 10.1159/000509865
S3224^New	Cinobufagin Cinobufagin (Cinobufagine), an active ingredient of Venenum Bufonis, inhibits tumor development. Cinobufagin increases ATM and Chk2 and decreases CDC25C, CDK1, and cyclin B. Cinobufagin inhibits PI3K, AKT and Bcl-2 while increases levels of cleaved caspase-9 and caspase-3. Thus, Cinobufagin induces cell cycle arrest at the G2/M phase and apoptosis.
S3238^New	Resibufogenin Resibufogenin (Bufogenin, Recibufogenin), a component of huachansu with anticancer effect, triggers necroptosis through upregulating receptor-interacting protein kinase 3 (RIP3) and phosphorylating mixed lineage kinase domain-like protein at Ser358. Resibufogenin exerts cytotoxic effect by inducing reactive oxygen species (ROS) accumulation. Resibufogenin induces apoptosis and caspase-3 and caspase-8 activity. Resibufogenin increases Bax/Bcl-2 expression, and suppresses cyclin D1, cyclin E, PI3K, p-AKT, p-GSK3β and β-catenin protein expression.
S9665^New	Motixafortide (BL-8040) Motixafortide (BL-8040, BKT140, TF 14016, 4-fluorobenzoyl, 4F-benzoyl-TN14003, T140) is an antagonist of CXCR4 with IC50 of ～1 nM. BL-8040 induces the apoptosis of AML blasts by down-regulating ERK, BCL-2, MCL-1 and cyclin-D1 via altered miR-15a/16-1 expression.

Catalog No.	Information	Product Use Citations	Product Validations
S1116	Palbociclib (PD-0332991) HCl Palbociclib (PD-0332991) HCl is a highly selective inhibitor of CDK4/6 with IC50 of 11 nM/16 nM in cell-free assays, respectively. It shows no activity against CDK1/2/5, EGFR, FGFR, PDGFR, InsR, etc. Phase 3.	Neoplasia, 2021, 23(1):140-148 Nature, 2020, 17 Nature, 2020, 583(7817):620-624	Patient tumor cell sensitivity to combinatorial treatment with histone deacetylase (HDAC)/cyclin-dependent kinase (CDK) inhibitors in 3-D culture. The effect of each drug or drug combination was assessed by fluorescent dye to identify live (green) and dead cells (red). Cells from breast reduction patients were used as non-cancer control in the assay.
S1153	Roscovitine (Seliciclib) Roscovitine (Seliciclib, CYC202) is a potent and selective CDK inhibitor for Cdc2, CDK2 and CDK5 with IC50 of 0.65 μM, 0.7 μM and 0.16 μM in cell-free assays. It shows little effect on CDK4/6. Phase 2.	Elife, 2020, 7;9:e44571 Signal Transduct Target Ther, 2020, 5(1):197 Mol Cell Biol, 2020, 40(4)	Inhibition of CDK5 by roscovitine resulted in defective neuronal migration, which was rescued by expression of GFP-Ndel1 (S251E). a, Granular neurons were treated with roscovitine. Western blotting was performed 24 h after start of culture. Aurora-A and NDEL1 displayed similar expression levels with untreated neurons, whereas the levels of phosphorylated Aurora-A and NDEL1 proteins were decreased after treatment with roscovitine. Relative intensities of the bands of Western blotting are shown at the bottom.
S1145	SNS-032 (BMS-387032) SNS-032 (BMS-387032) has firstly been described as a selective inhibitor of CDK2 with IC50 of 48 nM in cell-free assays and is 10- and 20-fold selective over CDK1/CDK4. It is also found to be sensitive to CDK7/9 with IC50 of 62 nM/4 nM, with little effect on CDK6. SNS-032 (BMS-387032) induces apoptosis. Phase 1.	J Clin Invest, 2020, 134132 Anal Chem, 2020, 92(1):1363-1371 Cell Death Dis, 2020, 11(9):754	HeLa cells were treated for 3h with PIK-75 or SNS-032 at the indicated concentrations. Cells were subsequently lysed and subjected to western blotting. One representative of two independent experiments is shown.
S2768	Dinaciclib (SCH727965) Dinaciclib (SCH727965, PS-095760) is a novel and potent CDK inhibitor for CDK2, CDK5, CDK1 and CDK9 with IC50 of 1 nM, 1 nM, 3 nM and 4 nM in cell-free assays, respectively. It also blocks thymidine (dThd) DNA incorporation. Dinaciclib induces apoptosis through the activation of caspases 8 and 9. Phase 3.	Cell, 2020, 182(3):685-712.e19 Cell, 2020, 182(3):685-712.e19 Cancer Cell, 2020, 13;37(4):599-617 e7	CDK4/6 inhibition has potent cytostatic effect in HER2-positive models. The indicated cells were treated with PD-0332991 (1 uM) or Dinaciclib (1 uM) for 96 hours and plates were stained with crystal violet.
S1230	Flavopiridol (Alvocidib) Flavopiridol (Alvocidib, NSC 649890, HMR-1275) competes with ATP to inhibit CDKs including CDK1, CDK2, CDK4, CDK6, and CDK9 with IC50 values in the 20-100 nM range. It is more selective for CDK1, 2, 4, 6, 9 versus CDK7. Flavopiridol is initially found to inhibit EGFR and PKA. Flavopiridol induces autophagy and ER stress. Flavopiridol blocks HIV-1 replication. Phase 1/2.	Nature, 2020, 580(7801):147-150 Mol Cell, 2020, 7;S1097-2765(20)30269-0 J Clin Invest, 2020, 134132	(C) In vivo treatment of Tg:Pomc-Pttg;Pomc-eGFP embryos with small-molecule CDK inhibitors (50 μM) or 0.2% DMSO as control from 18 to 40 hpf. One hundred to one hundred fifty embryos were treated with each compound. Representative images of live embryos are shown with gross morphology (Right) and pituitary Pomc-GFP-positive cells at higher magnification (Left) at 40 hpf. Embryos exposed to flavopiridol developed early developmental defect before pituitary POMC cell ontogeny occurs. (D) Relative expression of pituitary Pomc-eGFP fluorescence analyzed using Volocity 5.2 software (Improvision; mean ±SE of relative expression, n = 7). (E) R-roscovitine specifically suppresses expansion of pituitary POMC cells overexpressing zPttg from 18 to 48 hpf. Double transgenic Tg:Pomc-Pttg;Prl-RFP embryos were generated by breeding Tg:Pomc-Pttg fish with a previously generated PRL-RFP transgenic line, in which RFP was targeted to pituitary lactotrophs by a zebrafish Prolactin promoter (34). Representative fluorescent microscopy of pituitary POMC-eGFP (a and b) and PRL-RFP (c and d) expression in live Tg:Pomc-Pttg; Pomc-eGFP and Tg:Pomc-Pttg;Prl-RFP embryos treated with 0.2% DMSO (a and c) or 50 μM R-roscovitine (b and d). (F) Relative expression of pituitary POMC-eGFP or PRL-RFP fluorescence were analyzed (mean ±SE of relative expression; n = 10). Results represent one of three similar experiments;P < 0.02 and *P < 0.000005. (Scale bar, 50 μm.)
S6885^New	Ailanthone Ailanthone (AIL, Δ13-Dehydrochaparrinone), a natural anti-hepatocellular carcinoma (HCC) component in Ailanthus altissima, induces G0/G1-phase cell cycle arrest by decreasing expression of cyclins and CDKs and increases expression of p21 and p27. Ailanthone triggers DNA damage characterized by activation of the ATM/ATR pathway. Ailanthone induces apoptosis which is mitochondrion-mediated and involves the PI3K/AKT signaling pathway in Huh7 cells. Ailanthone is also a potent inhibitor of both full-length Androgen Receptor (AR-FL) and constitutively active truncated AR splice variants (AR-Vs, AR_1-651) with IC50 of 69 nM and 309 nM, respectively.
S7773^New	CDKI-73 CDKI-73 (LS-007) is a potent CDK inhibitor in vitro with IC50 of 8.17 nM, 3.27 nM, 8.18 nM, and 5.78 nM for CDK1, CDK2, CDK4, and CDK9, respectively. CDKI-73 induces apoptosis in cancer cells. CDKI-73 is an orally bioavailable and highly efficacious CDK9 inhibitor against acute myeloid leukemia.
S6871^New	Sodium oxamate Sodium oxamate (SO, Aminooxoacetic acid, Oxamic acid) is an inhibitor of lactate dehydrogenase (LDH) that specificly inhibits LDH‑A. Sodium oxamate (SO) induces G2/M cell cycle arrest via downregulation of the CDK1/cyclin B1 pathway and promotes apoptosis through enhancement of mitochondrial ROS generation.
S8783^New	JSH-150 JSH-150 is a highly selective and potent inhibitor of CDK9 with IC50 of 1 nM.
S8981^New	NVP-2 NVP-2, a potent, selective, non-neurotoxic and ATP-competitive cyclin dependent kinase 9 (CDK9) inhibitor with IC50 of 0.514 nM for CDK9/CycT activity and induces cell apoptosis.
S8979^New	THAL-SNS-032 THAL-SNS-032 is a selective Cyclin-dependent kinase 9 (CDK9) degrader PROTAC consisting of a CDK-binding SNS-032 ligand linked to a thalidomide derivative that binds the E3 ubiquitin ligase Cereblon (CRBN).
S8389^New	Trilaciclib Trilaciclib (G1T28, G1T28-1) is a highly potent, selective and reversible cyclin-dependent kinase 4 and 6 (CDK4/6) inhibitor. Trilaciclib inhibits CDK4/cyclin D1 and CDK6/cyclin D3 with IC50 of 1 nM and 4 nM, respectively.
S9605^New	Apcin Apcin (APC inhibitor) is an inhibitor of the E3 ligase activity of the mitotic anaphase-promoting complex/cyclosome (APC/C) that binds to Cdc20 and competitively inhibits the ubiquitylation of D-box-containing substrates.
S8815^New	BSJ-03-123 BSJ-03-123 is a phthalimide-based degrader of cyclin-dependent kinase 6 (CDK6). (PROTAC)
S7969^New	THZ2 THZ2, a THZ1 analog, is a selective inhibitor of CDK7 with IC50 of 13.9 nM. THZ2 efficiently suppresses the clonogenic growth of TNBC cells with IC50 of ~10 nM.
S8903^New	AS2863619 AS2863619 is a small-molecule cyclin-dependent kinase CDK8/19 inhibitor with IC50 of 0.6099 nM and 4.277 nM, respectively. AS2863619 is a potent Foxp3 inducer in T_conv cells.
S0771^New	BRD6989 BRD6989 is a selective inhibitor of CDK8 and CDK19. BRD6989 upregulates IL-10. BRD6989 is an analog of the natural product cortistatin A (dCA).
S8894^New	SR-4835 SR-4835 is a highly selective dual inhibitor of CDK12 and CDK13 with IC50 of 99 nM and Kd of 98 nM for CDK12 and IC50 of 4.9 nM for CDK13. SR-4835 disables triple-negative breast cancer (TNBC) cells. SR-4835 promotes synergy with DNA-damaging chemotherapy and PARP inhibitors.
S7981^New	CCT251545 CCT251545 is a potent, orally bioavailable inhibitor of WNT signaling with IC50 of 5 nM in 7dF3 cells. CCT251545 also act as a selective chemical probe for exploring the role of CDK8 and CDK19 in human disease.	Front Cell Dev Biol, 2020, 8:408
S0500^New	Purvalanol B Purvalanol B (NG-95) is a potent and selective inhibitor of cyclin-dependent kinase (CDK) with IC50 of 6 nM, 6 nM, 9 nM and 6 nM for cdc2-cyclin B, CDK2-cyclin A, CDK2-cyclin E and CDK5-p35, respectively.
S0354^New	Alsterpaullone Alsterpaullone (Alp, 9-Nitropaullone, NSC 705701) is a potent inhibitor of CDK with IC50 of 35 nM, 15 nM, 200 nM and 40 nM for CDK1/cyclin B, CDK2/cyclin A, CDK2/cyclin E and CDK5/p35, respectively. Alsterpaullone also acts as a potent inhibitor of glycogen synthase kinase-3 (GSK-3) with IC50 of both 4 nM for GSK-3α and GSK-3β. Alsterpaullone induces apoptosis by activation of caspase-9. Alsterpaullone has antitumor activity and possesses potential for the treatment of neurodegenerative and proliferative disorders.
S0273^New	CDK2-IN-73 (CDK2-IN-4) CDK2-IN-73 (CDK2-IN-4, CDK2 inhibitor 73) is a potent and selective inhibitor of CDK2 with IC50 of 44 nM for CDK2/cyclin A.
S6777^New	NSC95397 NSC 95397 is a potent, selective Cdc25 dual specificity phosphatase inhibitor with Ki of 32 nM, 96 nM, 40 nM for Cdc25A, Cdc25B and Cdc25C, respectively. NSC 95397 has IC50 of 22.3 nM, 56.9 nM and 125 nM for human Cdc25A, human Cdc25C and Cdc25B, respectively. NSC 95397 inhibits mitogen-activated protein kinase phosphatase-1 (MKP-1) and suppresses proliferation and induces apoptosis in colon cancer cells through MKP-1 and ERK1/2 pathway.
S2642^New	1-Naphthyl PP1(1-NA-PP1) 1-Naphthyl PP1(1-NA-PP 1) is a highly selective and potent pan-PKD inhibitor with IC50 of 154.6 nM,133.4 nM and 109.4 nM for PKD1, PKD2 and PKD3, respectively. 1-Naphthyl PP1 is a selective inhibitor of Src family kinases (v-Src, c-Fyn) and the tyrosine kinase c-Abl with IC50 of 1.0 μM, 0.6 μM, 0.6 μM, 18 μM and 22 μM for v-Src, c-Fyn, c-Abl, CDK2 and CAMK II, respectively.
S1058^New	BI-1347 BI-1347 is small molecule inhibitor of Cyclin-dependent kinase 8(CDK8) with IC50 of 1.1 nM.
S2009^New	Indirubin-3'-monoxime Indirubin-3'-monoxime (Indirubin-3'-oxime) is a selective CDK inhibitor with IC50 of 0.18 μM, 0.44 μM, 0.25 μM, 3.33 μM, 0.065 μM for CDK1-cyclinB, CDK2-cyclinA, CDK2-cyclinE, CDK4-cyclinD1, CDK5-p35,respectively. Indirubin-3'-monoxime is a direct and selective 5-lipoxygenase inhibitor with IC50 of 7.8-10 µM.
S1524	AT7519 AT7519 is a multi-CDK inhibitor for CDK1, 2, 4, 6 and 9 with IC50 of 10-210 nM. It is less potent to CDK3 and little active to CDK7. AT7519 also inhibits GSK3β with IC50 of 89 nM. AT7519 induces apoptosis. Phase 2.	Cell Death Dis, 2020, 11(9):754 Exp Mol Med, 2020, 10.1038/s12276-020-00537-z Biomolecules, 2020, 10(2)	Lysates of MDM treated with five-fold dilutions of the indicated compounds (starting concentration: AT7519, 0.5 mmol/l, roscovitine 4 mmol/l) were subjected to SDS-PAGE, transferred, and immunoblotted with antiphopho-SAMHD1, anti-SAMHD1 and anti-Hsp90 antibodies. MDM, monocyte-derived macrophage; SAMHD1, sterile a motif and HD domain-containing protein-1; SD, standard deviation.
S2679	Flavopiridol HCl Flavopiridol HCl (NSC 649890 HCl, alvocidib, L86-8275, HMR-1275, DSP-2033) competes with ATP to inhibit CDKs including CDK1, CDK2, CDK4 and CDK6 with IC50 of ~ 40 nM in cell-free assays. It is 7.5-fold more selective for CDK1/2/4/6 than CDK7. Flavopiridol is initially found to inhibit EGFR and PKA. Flavopiridol HCl induces autophagy and ER stress. Flavopiridol HCl blocks HIV-1 replication. Phase 1/2.	Haematologica, 2019, 10.3324/haematol.2019.222935 Mol Cancer Ther, 2019, 18(9):1520-1532 Sci Rep, 2019, 9(1):7779	Comparative efficacy of anticancer therapies (Flavopiridol, vincristine, daunorubicin, et al.) in NMC vs non-NMC cell lines. Mean IC50 (± s.e.m.) of the indicated agents in three NMC (PER-403, PER-624, and PER-704) and two non-NMC cell lines (PER-535 and SAOS2), ***P<0.001, unpaired t-test, corrected for multiple testing.
S1249	JNJ-7706621 JNJ-7706621 is pan-CDK inhibitor with the highest potency on CDK1/2 with IC50 of 9 nM/4 nM and showing >6-fold selectivity for CDK1/2 than CDK3/4/6 in cell-free assays. It also potently inhibits Aurora A/B and has no activity on Plk1 and Wee1.	Gland Surg, 2020, 9(2):558-574 EMBO J, 2019, 38(19):e101704 Sci Rep, 2019, 9(1):1897	JNJ-7706621 treatment of tamoxifen-resistant cell lines leads to arrest in the G2 cell cycle phase. M phase cells from the upper right quadrants were quantified relative to total G2/M phase cells. Statistical significant differences from vehicle-treated cells are denoted by asterisks; P<0.05, *P<0.01.
S2672	PF-00562271 Besylate PF-00562271 Besylate (PF-562271) is the benzenesulfonate salt of PF-562271, which is a potent, ATP-competitive, reversible inhibitor of FAK with IC50 of 1.5 nM, ~10-fold less potent for Pyk2 than FAK and >100-fold selectivity against other protein kinases, except for some CDKs. Phase 1.	Proc Natl Acad Sci U S A, 2020, 5;117(18):9896-9905 Cancer Cell, 2019, 35(6):868-884.e6 Hum Gene Ther, 2018, 29(8):886-901
S2621	AZD5438 AZD5438 is a potent inhibitor of CDK1/2/9 with IC50 of 16 nM/6 nM/20 nM in cell-free assays. It is less potent to CDK5/6 and also inhibits GSK3β. Phase 1.	J Clin Invest, 2020, 10.1172/JCI122462 Nat Commun, 2020, 11(1):71 Oncogene, 2020, 10.1038/s41388-020-01403-y	(a) HEK-293 cells expressing V5-EXO1 were synchronized in different phases of the cell cycle. EXO1 was immunoprecipitated (IP) with anti-V5 antibody and Western blotted with anti-phospho-Ser (p-SP) or anti-phospho-Thr (p-TP) CDK substrate antibodies, as indicated. “+AZD” indicates cells pre-treated with the CDK inhibitor AZD5438 prior to analysis. (b) HEK-293 cells expressing V5-EXO1, synchronized in G2, were pre-treated with CDK inhibitors, AZD5438 or Roscovitine, prior to analysis of EXO1 phosphorylation by IP-Western.
S2735	MK-8776 (SCH 900776) MK-8776 (SCH 900776) is a selective Chk1 inhibitor with IC50 of 3 nM in a cell-free assay. It shows 500-fold selectivity against Chk2. Phase 2.	Cancer Res, 2020, 80(18):3841-3854 Int J Mol Sci, 2020, 21(24)E9715 Sci Rep, 2020, 10(1):18924	Hela cell was trypsinized and plated at 30% confluence in DMEM. 16 hours later, MK-8776 (SCH900776) was added at final concentrations of 0, 5, 10 and 25uM. Another 24 hours later, cells were harvested in RIPA with protease and phosphatase inhibitor cocktail. Total protein concentration was measured by BCA method. Lysates equivalent to 20ug total protein were subject to Western Blot, using total- CHK1, pS345-CHK1 and beta-actin (internal control) antibodies.
S2890	PF-562271 PF-562271 is a potent, ATP-competitive, reversible inhibitor of FAK with IC50 of 1.5 nM in cell-free assays, ~10-fold less potent for Pyk2 than FAK and >100-fold selectivity against other protein kinases, except for some CDKs.	J Clin Invest, 2020, 1;130(5):2422-2434 Nat Commun, 2020, 11(1):3282 EMBO Mol Med, 2020, e12010	VEGF and P450 enzyme production in response to FAK or Src inhibitors. MCF10A cells were cultured in LD collagen gels ?vehicle control (V), 10 uM PF-562271 FAK ATP inhibitor (PF) or Src inhibitor PP2 for 24 h. Cells were also lysed and examined for CYP1A1 or CYP4B1 by immunoblot (B and C) and densitometry (D and E). VEGF data are displayed as the mean normalized to the vehicle control, N = 6, 盨EM, p < 0.003 vs control (A). P450 data are displayed as the mean relative to GAPDH and normalized to the control. N > 4, ±SEM, p < 0.05 vs respective control (D and E).
S1487	PHA-793887 PHA-793887 is a novel and potent inhibitor of CDK2, CDK5 and CDK7 with IC50 of 8 nM, 5 nM and 10 nM. It is greater than 6-fold more selective for CDK2, 5, and 7 than CDK1, 4, and 9. PHA-793887 induces cell-cycle arrest and apoptosis. Phase 1.	Cell, 2020, 182(3):685-712.e19 Cell, 2020, 182(3):685-712.e19 Mol Cell Biol, 2020, 40(4)	J558 cells were treated with PHA793887 (0.02–5 umol/L) for 6 hours, after which Western blot analysis was performed to monitor XBP-1s expression. Tub, tubulin.
S1572	BS-181 HCl BS-181 HCl is a highly selective CDK7 inhibitor with IC50 of 21 nM. It is more than 40-fold selective for CDK7 than CDK1, 2, 4, 5, 6, or 9.	Cancers (Basel), 2020, 12(12)E3845 Neuroendocrinology, 2020, 10.1159/000509865 Epigenetics Chromatin, 2019, 12(1):11	Dose-response inhibition of purified human recombinant cyclin-dependent kinase CDK7/cyclin H by inhibitor BS-181 (left panel). Immunoblotting of RNA polymerase II and its phosphorylated form (at Ser5), physiological substrate of CDK7, in MCF-7 cells treated with different doses of inhibitor BS-181 for 24 h (right panel).
S1579	Palbociclib (PD0332991) Isethionate Palbociclib (PD0332991) Isethionate is a highly selective inhibitor of CDK4/6 with IC50 of 11 nM/16 nM in cell-free assays. It shows no activity against CDK1/2/5, EGFR, FGFR, PDGFR, InsR, etc. Phase 3.	Neoplasia, 2021, 23(1):140-148 Nature, 2020, 583(7817):620-624 Acta Neuropathol, 2020, 10.1007/s00401-020-02226-7	HT29 cells were treated with DMSO control, 1 uM selumetinib (Sel) or 5 uM PD0332991 (991) for 24 or 48 h after which time cells were lysed, subjected to SDS/PAGE and immunoblotted with the indicated antibodies.
S2670	A-674563 A-674563 is an Akt1 inhibitor with K_i of 11 nM in cell-free assays, modest potent to PKA and >30-fold selective for Akt1 over PKC.	Sci Signal, 2020, 13(619) Cancers (Basel), 2020, 12(9)E2668 Biomolecules, 2020, 10(2)	B cells were pre-treated with the indicated concentrations of A-674563 for 1h prior to R848 treatment (500 ng/ml). Thymidine incorporation was analyzed 24h later.
S7158	Abemaciclib mesylate (LY2835219) Abemaciclib (LY2835219) is a potent and selective inhibitor of CDK4 and CDK6 with IC50 of 2 nM and 10 nM in cell-free assays, respectively. Phase 3.	Cell, 2020, 182(3):685-712.e19 Cell, 2020, 182(3):685-712.e19 Acta Neuropathol, 2020, 10.1007/s00401-020-02226-7	HT29 cells were treated with DMSO control, 1 uM selumetinib (Sel), 5 uM PD0332991 (991), 0.3 uM LY2835219 (219) or serum-free (SF) medium for 48 h. Whole cell extracts were prepared, fractionated by SDS/PAGE and analysed by Western blotting with the indicated antibodies.
S2014	BMS-265246 BMS-265246 is a potent and selective CDK1/2 inhibitor with IC50 of 6 nM/9 nM in a cell-free assay. It is 25-fold more selective for CDK1/2 than CDK4.	Cancers (Basel), 2020, 12(6):E1637 Nature, 2019, 10.1038/s41586-019-1607-3 Nature, 2019, 574(7777):268-272
S2742	PHA-767491 PHA-767491 (CAY10572) is a potent ATP-competitive dual Cdc7/CDK9 inhibitor with IC50 of 10 nM and 34 nM in cell-free assays, respectively.It displays ~20-fold selectivity against CDK1/2 and GSK3-β, 50-fold selectivity against MK2 and CDK5, 100-fold selectivity against PLK1 and CHK2.	Mol Cell, 2020, S1097-2765(20)30785-1 Cell Rep, 2020, 7;31(1):107485 Mol Cancer Ther, 2020, 19(5):1183-1196	Viability at 250 nM and CI vs. Fa for U2932 following 24 hours exposure to ABT-199, additional drugs with activity against CDK9, or the combinations. Mean of quadruplicates ± SEM.
S2751	Milciclib (PHA-848125) Milciclib (PHA-848125) is a potent, ATP-competitive CDK inhibitor for CDK2 with IC50 of 45 nM. It is >3-fold more selective for CDK2 than CDK1, 2, 4, 5, and 7. Milciclib (PHA-848125) induces cell death through autophagy. Phase 2.	Cancer Discov, 2020, 1 pii: CD-19-1030 J Pharm Biomed Anal, 2020, 190:113516 Cell Rep, 2020, 32(2):107897	Cell survival curves of A549 cells treated with increasing doses of A-674563, PHA-848125, and H89 2HCl for 72 hours. Cells were incubated with cell proliferation reagent WST-1 for 2 hours and absorbance was read at 450nm. Optical density was then normalized to a 1% DMSO control. The data is presented as the percentage of cell survival relative to the DMSO control ± SEM of three independent trials. Statistical significance was determined with multiple T-tests using the Holm-Sidak method without assuming a consistent SD and is represented by *p<0.05.
S2688	R547 R547 (Ro 4584820) is a potent ATP-competitive inhibitor of CDK1/2/4 with K_i of 2 nM/3 nM/1 nM. It is less potent to CDK7 and GSK3α/β, while inactive to other kinases. Phase 1.	Cell, 2020, 182(3):685-712.e19 Cell, 2020, 182(3):685-712.e19 Cancer Res, 2019, 10.1158/0008-5472.CAN-18-2486
S1949	Menadione Menadione(Vitamin K3), a fat-soluble compound, is an inhibitor of Cdc25 phosphatase and mitochondrial DNA polymerase γ (pol γ), used as a nutritional supplement.	Cell Mol Immunol, 2020, 10.1038/s41423-020-00545-z Am J Cancer Res, 2020, 1;10(5):1442-1454 Life Sci, 2020, 242:117159
S7198	BIO BIO (GSK-3 Inhibitor IX, 6-bromoindirubin-3-oxime) is a specific inhibitor of GSK-3 with IC50 of 5 nM for GSK-3α/β in a cell-free assay, shows >16-fold selectivity over CDK5, also a pan-JAK inhibitor with IC50 of 30 nM for Tyk2. BIO induces apoptosis in human melanoma cells.	Cell Stem Cell, 2020, S1934-5909(20)30541-5 Stem Cells, 2020, 10.1002/stem.3274 Front Immunol, 2020, 27;11:438	Lysates of HCT116p53KO cells were harvested 24 hs after treatment with different GSK3 inhibitors and GSK3A/B activation/inactivation checked by western blot: a mix of pSer21-GSK3A and pSer9-GSK3B antibodies and antibody cross-reacting with both pTyr279-GSK3A and pTyr216-GSK3B were used to assess the specificity of the inhibitor for GSK3A. BIO: 6-bromoindirubin-3'-oxime, TWS: TWS119, SB2: SB216763, SB4: SB415286.
S7440	Ribociclib (LEE011) Ribociclib (LEE011) is an orally available, and highly specific inhibitor of CDK4 and CDK6 with IC50 of 10 nM and 39 nM. Phase 3.	Nat Commun, 2020, 11(1):5305 Genome Med, 2020, 18;12(1):17 Elife, 2020, 7;9:e44571	Analysis of apoptosis in leukemia cells induced by LEE011. Annexin V staining of cells following 48-h treatment with LEE011 at 2 or 5 µM compared with DMSO controls. Following 5-µM LEE011 treatment, the K562 apoptotic cell percentage was 5.9 ± 0.75 vs. 1.2 ± 0.66% for the DMSO group, P = 0.001; in MV4-11 cells, the apoptotic cell percentage was 24.2 ± 3.06 vs. 0.53 ± 0.40% for the DMSO group, P = 0.005; in U937 cells, the apoptotic cell percentage was 9.9 ± 2.81 vs. 0.57 ± 0.42% for the DMSO group, P = 0.027; in HL-60 cells, the apoptotic cell percentage was 28.23 ± 6.01 vs. 0.9 ± 0.8% for the DMSO group, P = 0.015; in THP-1 cells, the apoptotic cell percentage was 1.76 ± 0.4 vs. 1.56 ± 0.45% for the DMSO group, P = 0.59; in CCRF cells, the apoptotic cell percentage was 13.77 ± 3.16 vs. 1.2 ± 0.36% for the DMSO group, P = 0.019; in NB4 cells, the apoptotic cell percentage was 12.1 ± 1.35 vs. 0.86 ± 0.25% for the DMSO group, P = 0.004; and in SHI-1 cells the apoptotic cell percentage was 12.6 ± 2.81 vs. 1.87 ± 0.75% for the DMSO group, P = 0.017. These analyses were repeated three times. P < 0.05; *P < 0.01
S7114	NU6027 NU6027 is a potent ATR/CDK inhibitor, inhibits CDK1/2, ATR and DNA-PK with K_i of 2.5 μM/1.3 μM, 0.4 μM and 2.2 μM, enter cells more readily than the 6-aminopurine-based inhibitors.
S7357	PF-562271 HCl PF-562271 HCl is the hydrochloride salt of PF-562271, which is a potent, ATP-competitive, reversible inhibitor of FAK with IC50 of 1.5 nM, ~10-fold less potent for Pyk2 than FAK and >100-fold selectivity against other protein kinases, except for some CDKs. Phase 1.	Cancers (Basel), 2020, 12(12)E3708 Cell Cycle, 2020, 14:1-13 Cancer Med, 2020, 10.1002/cam4.3621	VEGF and P450 enzyme production in response to FAK or Src inhibitors. MCF10A cells were cultured in LD collagen gels ?vehicle control (V), 10 uM PF-562271 FAK ATP inhibitor (PF) or Src inhibitor PP2 for 24 h. Cells were also lysed and examined for CYP1A1 or CYP4B1 by immunoblot (B and C) and densitometry (D and E). VEGF data are displayed as the mean normalized to the vehicle control, N = 6, 盨EM, p < 0.003 vs control (A). P450 data are displayed as the mean relative to GAPDH and normalized to the control. N > 4, ±SEM, p < 0.05 vs respective control (D and E).
S8058	Riviciclib hydrochloride (P276-00) Riviciclib hydrochloride (P276-00) is a novel CDK1, CDK4 and CDK9 inhibitor with IC50 of 79 nM, 63 nM and 20 nM, respectively. Riviciclib hydrochloride (P276-00) induces apoptosis. Phase 2/3.	Mol Cell, 2020, 77(6):1322-1339 Proc Natl Acad Sci U S A, 2019, 116(27):13374-13383 Cell Chem Biol, 2018, 10.1016/j.chembiol.2017.11.007	Predicted anticancer drugs inhibit the growth of neuroendocrine tumor cells. Multi-tyrosine kinase inhibitors sorafenib, sunitinib, regorafenib and cabozantinib effectively inhibit GOT1 cell growth with IC50 values in the micromolar range. Inhibitors of AKT (MK-2206), HDAC (vorinostat), HSP90 (alvespimycin) and CDK4/9 (P276-00) also inhibited GOT1 cell growth at micromolar concentrations, whereas inhibition of PARP1 (veliparib) had no effect. GOT1 cells were treated with anticancer drugs at various concentrations for 4 days. Cell viability was estimated using AlamarBlue®. Data points are the mean values of three individual experiments carried out in triplicate (n=9). Fitting of curves was done in GraphPad Prism software v6.04 using log (inhibitor) vs response nonlinear fit with variable slope. IC50 was interpolated at Y=50 and bars denote ±s.d.
S6537	CVT-313 CVT-313 is a potent CDK2 inhibitor with an IC50 of 0.5 microM in vitro. It has no effect on other, nonrelated ATP-dependent serine/threonine kinases.
S8727	Atuveciclib (BAY-1143572) Atuveciclib (BAY-1143572) is potent and highly selective PTEFb/CDK9 inhibitor with IC50 values of 13 nM for CDK9/CycT and the ratio of IC50 values for CDK2/CDK9 is about 100. Outside the CDK family, It inhibits GSK3 kinase with IC50 values of 45 nM and 87 nM for GSK3α and GSK3β respectively.	Cell Chem Biol, 2020, S2451-9456(20)30380-9 Front Cell Dev Biol, 2020, 8:579658 Mol Cancer Ther, 2019, 10.1158/1535-7163.MCT-19-0451
S7549	THZ1 2HCl THZ1 is a covalent CDK7 inhibitor which has the unprecedented ability to target a remote cysteine residue located outside of the canonical kinase domain, providing an unanticipated means of achieving selectivity for CDK7.	Cell, 2020, 182(3):685-712.e19 Cell, 2020, 182(3):685-712.e19 EMBO Mol Med, 2020, e11099	One and three days after differentiation induction, protein level of Myh3 and Myogenin were analyzed by western blot.
S7320	TG003 TG003 is a potent and ATP-competitive Cdc2-like kinase (Clk) inhibitor with IC50 of 20 nM, 200 nM, and 15 nM for Clk1, Clk2, and Clk4, respectively. No inhibitory effect on Clk3, SRPK1, SRPK2, or PKC.	Nat Commun, 2020, 22;11(1):1931 Gastric Cancer, 2020, 24 Blood Adv, 2019, 3(21):3214-3227
S8568	G1T38 G1T38 (Lerociclib) is a novel, potent, selective, and orally bioavailable CDK4/6 inhibitor with IC50 values of 0.001 μM, 0.002 μM and 0.028 μM for CDK4, CDK6 and CDK9 respectively.
S5316	NU2058 NU2058 (O(6)-Cyclohexylmethylguanine) is an inhibitor of CDK2 with IC50 value of 17 μM in an isolated enzyme assay. It also potentiates melphalan (DMF 2.3), and monohydroxymelphalan (1.7), but not temozolomide or ionising radiation.
S6531	Bohemine Bohemine is a CDK inhibitor with IC50s of 4.6, 83, and 2.7 μM for Cdk2/cyclin E, Cdk2/cyclin A, and Cdk9/cyclin T1, respectively.
S6540	NG 52 NG-52 is a tri-substituted purine that binds to the ATP-binding site of yeast cyclin-dependent kinases, inhibiting Cdc28p and Pho85p with IC50s of 7 and 2 μM, respectively.
S7747	Ro-3306 RO-3306 is an ATP-competitive, and selective CDK1 inhibitor with K_i of 20 nM, >15-fold selectivity against a diverse panel of human kinases. RO-3306 enhances p53-mediated Bax activation and mitochondrial apoptosis.	Cell Res, 2020, 10.1038/s41422-020-0357-y Mol Cell, 2020, 22 pii: S1097-2765(20)30231-8 Nat Commun, 2020, 11(1):4338	HeLa cells were untreated or treated with either colcemid (10 μg/ml for 16 h), RO-3306 (9 μM for 16 h), or both colcemid and RO-3306, as indicated. Cells were then lysed, and proteins were detected by Western analysis.
S7992	LDC4297 (LDC044297) LDC4297 is a novel CDK7 inhibitor (IC50=0.13±0.06 nM for CDK7 versus IC50s between 10 nM and 10,000 nM for all other analyzed CDKs).	Mol Cell, 2019, 74(4):674-687
S8520	Senexin A Senexin A is a potent and selective inhibitor of CDK8 and its nearest relative, CDK19 with Kd values of 0.83 μM and 0.31 μM for CDK8 and CDK19 ATP site binding, respectively.
S8387	MSC2530818 MSC2530818, a CDK8 inhibitor with the IC50 of 2.6 nM, displays excellent kinase selectivity, biochemical and cellular potency, microsomal stability, and is orally bioavailable.	Nat Commun, 2019, 10(1):4741
S8722	ICEC0942 (CT7001) ICEC0942 (CT7001) is a new, orally bioavailable CDK7 inhibitor with an IC50 of 40nM. The IC50 values for CDK1, CDK2, CDK5 and CDK9 were 45-, 15-, 230- and 30-fold higher. ICEC0942 (CT7001) promotes cell cycle arrest and apoptosis.
S4743	Wogonin Wogonin (Vogonin), a natural and biologically-active flavonoid found in plants, is an inhibitor of CDK9 and does not inhibit CDK2, CDK4 and CDK6 at doses that inhibit CDK9 activity; Also inhibits N-acetyltransferase.	Exp Ther Med, 2015, 10(3):1066-1070	Effect of Wogonin on the translocation and transcriptional activity of NFATc1. U2OS cells stably transfected with EGFP-NFATc1, RANKL (100 ng/ml) and different concentrations of Wogonin (5.0, 1.0, 0.1 and 0.0 mM) were added and incubated for 24 h. The IN Cell™ Analyzer 1000 was used to observe the translocation of NFATc1. (A) DMSO was used as a control. RANKL (100 ng/ml) significantly stimulated the translocation of NFATc1; Wogonin (5 mM) significantly decreased the translocation of NFATc1 induced by RANKL (magnification, x200). (B) Statistics showed that Wogonin could decrease the translocation of NFATc1 into the nucleus induced by RANKL in a concentration-dependent manner. RAW264.7 cells were transfected with pGL3-promoter-NFATc1-RE, and then RANKL (100 ng/ml) and different concentrations of Wogonin (5.0, 1.0, 0.1 and 0.0 mM) were added and incubated for 24 h. (C) RANKL significantly increased the transcriptional activity of NFATc1 and Wogonin decreased the transcriptional activity of NFATc1 induced by RANKL in a concentration-dependent manner. n=3; P<0.05 and **P<0.001 compared with the RANKL group. NAFTc1, nuclear factor of activated T cells c1; EGFP, enhanced green fluorescent protein; DMSO, dimethylsulfoxide, RANKL, receptor activator of nuclear factor κB ligand; RE, response element.
S7793	Purvalanol A Purvalanol A is a potent, and cell-permeable CDK inhibitor with IC50 of 4 nM, 70 nM, 35 nM, and 850 nM for cdc2-cyclin B, cdk2-cyclin A, cdk2-cyclin E, and cdk4-cyclin D1, respectively. Purvalanol A induces endoplasmic reticulum stress-mediated apoptosis and autophagy.	Aging (Albany NY), 2020, 12(19):19022-19044 Gland Surg, 2020, 9(2):558-574 FEBS J, 2019, 286(5):963-974	After 12 h PAB treatment, cells were treated with PAB in the absence and presence of RO-3306 or purvalanol A for 12 h and 36 h. (A) Expressions of p-histone h3 were detected by western blot.
S7511	LY2857785 LY2857785 is a type I reversible and competitive ATP kinase inhibitor against CDK9(IC50=0.011 μM) and also inhibits other transcription kinases CDK8(IC50=0.016 μM) and CDK7 (IC50=0.246 μM).
S8100	K03861 K03861 (AUZ 454，AUZ454) is a type II CDK2 inhibitor with K_d of 50 nM, 18.6 nM, 15.4 nM, and 9.7 nM for CDK2(WT), CDK2(C118L), CDK2(A144C), and CDK2(C118L/A144C), respectlvely.	Cancers (Basel), 2020, 12(6):E1637 Mol Oncol, 2020, 14(12):3153-3168 J Virol, 2019, 93(12)
S7648	OTS964 OTS964 is a potent TOPK inhibitor with high affinity and selectivity and IC50 value is 28 nM. OTS964 is also a potent inhibitor of the cyclin-dependent kinase CDK11 with Kd of 40 nM. OTS964 treatment activates autophagy in glioma cells and induces apoptosis of human lung cancer cells in mouse xenografts.
S8809	MC180295 MC180295 is a novel potent and selective CDK9 inhibitor with an IC50 of 5 nM and is at least 22-fold more selective for CDK9 over other CDKs.
S7509	ML167 ML167 (CID 44968231) is a highly selective Cdc2-like kinase 4 (Clk4) inhibitor with IC50 of 136 nM, >10-fold selectivity for closely related kinases Clk1-3 and Dyrk1A/1B.	SLAS Discov, 2018, 23(8):850-861
S7917	Kenpaullone Kenpaullone is an ATP-competitive inhibitor of cyclin-dependent kinases (CDKs). It also inhibit glycogen synthase kinase 3β (GSK3β) with IC50 of 0.23 µM.	Cell, 2020, 182(3):685-712.e19 Cell, 2020, 182(3):685-712.e19 Antiviral Res, 2019, 170:104572	Effect of Kenpaullone on GSK-3β and CDKs. (A and B) Naïve CD4+ T cells were stimulated with anti-CD3/CD28 (TCR), TGF-β (5 ng/ml) and IL-6 (20 ng/ml) in the presence of the indicated Kenpaullone (Kenp) concentrations for 30 min (A) or 24 h (A and B).
S8161	ON123300 ON123300 is a potent and multi-targeted kinase inhibitor with IC50 of 3.9 nM, 5 nM, 26 nM, 26 nM, 9.2 nM and 11nM for CDK4, Ark5/NUAK1, PDGFRβ, FGFR1, RET (c-RET), and Fyn, respectively.	Molecules, 2020, 8;25(9) pii: E2220
S5716	Abemaciclib Abemaciclib (LY2835219) is a cell cycle inhibitor selective for CDK4/6 with IC50 of 2 nM and 10 nM in cell-free assays, respectively.	Cancer Cell, 2020, 37(3):340-353 Acta Neuropathol, 2020, 10.1007/s00401-020-02226-7 Theranostics, 2020, 10(23):10619-10633
S7461	LDC000067 LDC000067 (LDC067) is a highly selective CDK9 inhibitor with IC50 of 44 nM, 55/125/210/ >227/ >227-fold selectivity over CDK2/1/4/6/7.	Mol Cell, 2020, 77(6):1322-1339 Cell Rep, 2020, 7;31(1):107485 Cancers (Basel), 2020, 12(6):E1637	Inhibition of CDK9 leads to a decrease in RNApol II activity and repetitive element expression. HEK293T cells were treated with DMSO control and the indicated amounts of LDC000067, a CDK9 inhibitor, for a total of 3 h. (A) Immunoblots showing the levels of phosphorylated RNApol II largest subunit (pRPB1), total RPB1 and GAPDH, in response to different doses of CDK9 inhibitor. (B) Quantification of immunoblots from 2 independent experiments in which each condition was performed in duplicates, and in which pRPB1 and total RPB1 protein levels were normalized to GAPDH or as pRPB1/Total RPB1 ratio. (C, D) qRT-PCR analyses show a significant response to CDK9 inhibition of repetitive elements belonging to the LTR (C) and SINE (D) classes. Statistical analyses were performed to compare all groups using a One-way ANOVA followed by Bonforreoni’s multiple comparison test, P < 0.05, *P < 0.01, #P < 0.0001.
S8730	BAY 1251152 BAY1251152 is a potent PTEFb/CDK9 inhibitor with an IC50 value of 3 nM for CDK9 and an at least 50-fold selectivity against other CDKs in enzymatic assays. BAY1251152 binds to and blocks the phosphorylation and kinase activity of CDK9, thereby preventing PTEFb-mediated activation of RNA Pol II and leading to the inhibition of gene transcription of various anti-apoptotic proteins.
S7636	SU9516 SU 9516 is a 3-substituted indolinone CDK inhibitor with IC50 of 22 nM, 40 nM, and 200 nM for CDK2, CDK1, and CDK4, respectively.	Cell Chem Biol, 2019, 26(1):121-130 Biotechnol Lett, 2017, 39(7):951-957	a, Porcine blastocysts derived from the SU9516-treated group. Scale bar 100 μM. b, An image of a 7 day SU9516- treated parthenogenetically activated porcine embryo stained with Hoechst 33342. Scale bar 100 μM. c, Tetraploid karyotype from SU9516 treated blastocysts. Scale bar 50 μM. d, Porcine blastocysts derived from the cytochalasin B (CB)-treated group. Scale bar 100 μM. e, An image of a 7 day CB-treated parthenogenetically activated porcine embryo stained with Hoechst 33342. Scale bar 100 μM. f, diploid karyotype from CB treated blastocysts. Scale bar 50 μM
S7808	AT7519 HCl AT7519 HCl is a multi-CDK inhibitor for CDK1, 2, 4, 6 and 9 with IC50 of 10-210 nM in cell-free assays. It is less potent to CDK3 and little active to CDK7. Phase 2.	Exp Mol Med, 2020, 10.1038/s12276-020-00537-z Proc Natl Acad Sci U S A, 2019, 116(10):4316-4325 Iran J Pharm Res, 2019, 18(Suppl1):119-131	(c) Effect of AT7519 treatment on RNA pol II occupancy at the PRCC gene. MM1.S cells were treated with either DMSO vehicle (blue) or 2 μM AT7519 (brown) for 6 h, followed by RNA pol II ChIP-seq analysis. Twenty-fold magnifications of the rpm/bp scale of these gene tracks are shown in the right panel to show the difference in reads for elongating RNA pol II. TR, RNA pol II traveling ratio. (d) Genome-wide binding average RNA pol II (ChIP-seq) on active promoters and gene bodies following treatment of MM1.S cells with DMSO vehicle (blue) or 2 μM of AT7519 (brown) for 6 h. Magnification of the rpm/bp scale at gene bodies is shown in the inset. The inset includes RNA polymerase II traveling ratio distributions (TR, mean) derived from MM1.S cells treated with DMSO (blue) or 2 μM AT7519 (red). (e) Chemical structures of the pan-CDK inhibitor AT7519 and its biotinylated counterpart bio-AT7519. (f) In vitro kinase assays with recombinant cyclin T-CDK9 complex in the presence of increasing concentrations of AT7519 or bio-AT7519. The derived IC50 values for each compound are shown. (g) Effect of AT7519 and bio-AT7519 on MM1.S cell proliferation. Cells were treated with varying concentrations of drug for 72 h as indicated. The derived EC50 values for each compound are shown.
S8863	YKL-5-124 YKL-5-124 is a potent, selective and covalent CDK7 inhibitor with an IC50 of 9.7 nM, 1300 nM and 3020 nM for inhibiting CDK7/Mat1/CycH, CDK2 and CDK9 respectively. It displays biochemical and cellular selectivity for CDK7 over CDK12/13.
S8719	AZD4573 AZD4573 is a potent inhibitor of CDK9 (IC50 of <0.004 μM) with fast-off binding kinetics (t_1/2 = 16 min) and high selectivity versus other kinases, including other CDK family kinases.	Cell Chem Biol, 2020, S2451-9456(20)30380-9 Cancer Cell, 2020, 38(6):872-890.e6
S7547	XL413 (BMS-863233) XL413 (BMS-863233) is a potent and selective cell division cycle 7 homolog (CDC7) kinase inhibitor with IC50 of 3.4 nM, showing 63-, 12- and 35-fold selectivity over CK2, Pim-1 and pMCM2, respectively. Phase 1/2.	Cell, 2020, 182(3):685-712.e19 Cell, 2020, 182(3):685-712.e19 Cancers (Basel), 2020, 12(9)E2498	The protein levels of p-MCM2 and p-ERK in NOK, HN6 and Cal27 cells treated with 0, 10 and 20 μMXL413 were detected by western blotting.
S8840	SEL120 (SEL120-34A) hydrochloride SEL120 (SEL120-34, SEL120-34A) is a novel inhibitor of Cyclin-dependent kinase 8 (CDK8) with IC50 values of 4.4 nM and 10.4 nM for CDK8/Cyclin C and CDK19/CyclinC respectively.
S6595	THZ531 THZ531 is a selective covalent inhibitor of CDK12 and CDK13 with IC50 values of 158 and 69 nM, respectively.	Neuroendocrinology, 2020, 10.1159/000509865

Catalog No.	Information	Product Use Citations	Product Validations
S3224^New	Cinobufagin Cinobufagin (Cinobufagine), an active ingredient of Venenum Bufonis, inhibits tumor development. Cinobufagin increases ATM and Chk2 and decreases CDC25C, CDK1, and cyclin B. Cinobufagin inhibits PI3K, AKT and Bcl-2 while increases levels of cleaved caspase-9 and caspase-3. Thus, Cinobufagin induces cell cycle arrest at the G2/M phase and apoptosis.
S3238^New	Resibufogenin Resibufogenin (Bufogenin, Recibufogenin), a component of huachansu with anticancer effect, triggers necroptosis through upregulating receptor-interacting protein kinase 3 (RIP3) and phosphorylating mixed lineage kinase domain-like protein at Ser358. Resibufogenin exerts cytotoxic effect by inducing reactive oxygen species (ROS) accumulation. Resibufogenin induces apoptosis and caspase-3 and caspase-8 activity. Resibufogenin increases Bax/Bcl-2 expression, and suppresses cyclin D1, cyclin E, PI3K, p-AKT, p-GSK3β and β-catenin protein expression.

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S3224^New

Cinobufagin

Cinobufagin (Cinobufagine), an active ingredient of Venenum Bufonis, inhibits tumor development. Cinobufagin increases ATM and Chk2 and decreases CDC25C, CDK1, and cyclin B. Cinobufagin inhibits PI3K, AKT and Bcl-2 while increases levels of cleaved caspase-9 and caspase-3. Thus, Cinobufagin induces cell cycle arrest at the G2/M phase and apoptosis.

S3238^New

Resibufogenin

Resibufogenin (Bufogenin, Recibufogenin), a component of huachansu with anticancer effect, triggers necroptosis through upregulating receptor-interacting protein kinase 3 (RIP3) and phosphorylating mixed lineage kinase domain-like protein at Ser358. Resibufogenin exerts cytotoxic effect by inducing reactive oxygen species (ROS) accumulation. Resibufogenin induces apoptosis and caspase-3 and caspase-8 activity. Resibufogenin increases Bax/Bcl-2 expression, and suppresses cyclin D1, cyclin E, PI3K, p-AKT, p-GSK3β and β-catenin protein expression.

Catalog No.	Information	Product Use Citations	Product Validations
S9665^New	Motixafortide (BL-8040) Motixafortide (BL-8040, BKT140, TF 14016, 4-fluorobenzoyl, 4F-benzoyl-TN14003, T140) is an antagonist of CXCR4 with IC50 of ～1 nM. BL-8040 induces the apoptosis of AML blasts by down-regulating ERK, BCL-2, MCL-1 and cyclin-D1 via altered miR-15a/16-1 expression.

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S9665^New

Motixafortide (BL-8040)

Motixafortide (BL-8040, BKT140, TF 14016, 4-fluorobenzoyl, 4F-benzoyl-TN14003, T140) is an antagonist of CXCR4 with IC50 of ～1 nM. BL-8040 induces the apoptosis of AML blasts by down-regulating ERK, BCL-2, MCL-1 and cyclin-D1 via altered miR-15a/16-1 expression.

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