CDK

Signaling Pathway Map

Research Area

Inhibitory Selectivity

Isoform-specific Inhibitors

CDK Products

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.

S1153

Roscovitine (Seliciclib,CYC202)

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.

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.

S2768

Dinaciclib (SCH727965)

Dinaciclib (SCH727965) 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.

S1230

Flavopiridol (Alvocidib)

Flavopiridol (Alvocidib) 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.

S6871New

Sodium oxamate

Sodium oxamate (SO) 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.

S8815New

BSJ-03-123

BSJ-03-123 is a phthalimide-based degrader of cyclin-dependent kinase 6 (CDK6). (PROTAC)

S7969New

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.

S8903New

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 Tconv cells.

S8894New

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.

S0500New

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.

S0273New

CDK2-IN-73 (CDK2-IN-4)

CDK2-IN-73 (CDK2-IN-4) is a potent and selective inhibitor of CDK2 with IC50 of 44 nM for CDK2/cyclin A.

S6777New

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.

S2642New

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.

S1058New

BI-1347

BI-1347 is small molecule inhibitor of Cyclin-dependent kinase 8(CDK8) with IC50 of 1.1 nM.

S2009New

Indirubin-3'-monoxime

Indirubin-3'-monoxime is a selective CDK inhibitor with IC50 of 0.18 μM, 0.44 μM, 0.25 μM, 3.33 μM, 0.1 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.

S8730New

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.

S8863New

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.

S6595New

THZ531

THZ531 is a selective covalent inhibitor of CDK12 and CDK13 with IC50 values of 158 and 69 nM, respectively.

S6710New

SGC-GAK-1

SGC-GAK-1 is a potent, selective, and cell-active inhibitor of cyclin G-associated kinase (GAK) with Ki value of 3.1 nM and >50-fold selectivity over nearest kinase.

S8809New

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.

S6531New

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.

S6540New

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.

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.

S2679

Flavopiridol HCl

Flavopiridol HCl 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. Phase 1/2.

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.

S2672

PF-00562271 Besylate

PF-00562271 Besylate 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.

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.

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.

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.

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. Phase 1.

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.

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.

S2670

A-674563

A-674563 is an Akt1 inhibitor with Ki of 11 nM in cell-free assays, modest potent to PKA and >30-fold selective for Akt1 over PKC.

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.

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.

S2742

PHA-767491

PHA-767491 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.

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.

S2688

R547

R547 is a potent ATP-competitive inhibitor of CDK1/2/4 with Ki of 2 nM/3 nM/1 nM. It is less potent to CDK7 and GSK3α/β, while inactive to other kinases. Phase 1.

S7198

BIO

BIO 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.

S7440

Ribociclib (LEE011)

Ribociclib (LEE011) is an orally available, and highly specific CDK4/6 inhibitor. Phase 3.

S7114

NU6027

NU6027 is a potent ATR/CDK inhibitor, inhibits CDK1/2, ATR and DNA-PK with Ki 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.

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.

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.

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.

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.

S8568

G1T38

Lerociclib (G1T38) 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 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.

S7747

Ro-3306

RO-3306 is an ATP-competitive, and selective CDK1 inhibitor with Ki of 20 nM, >15-fold selectivity against a diverse panel of human kinases. RO-3306 enhances p53-mediated Bax activation and mitochondrial apoptosis.

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).

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.

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, 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.

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.

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 is a type II CDK2 inhibitor with Kd 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.

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.

S7509

ML167

ML167 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.

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.

S8652

Skp2 inhibitor C1 (SKPin C1)

Skp2 inhibitor C1 (SKPin C1) is a specific and selective small-molecule inhibitor of Skp2-mediated p27 degradation by reducing p27 binding through key compound-receptor contacts.

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, PDGFRβ, FGFR1, RET, and Fyn, respectively.

S5716

Abemaciclib

Abemaciclib is a cell cycle inhibitor selective for CDK4/6 with IC50 of 2 nM and 10 nM in cell-free assays, respectively.

S7461

LDC000067

LDC000067 is a highly selective CDK9 inhibitor with IC50 of 44 nM, 55/125/210/ >227/ >227-fold selectivity over CDK2/1/4/6/7.

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.

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.

S8719

AZD4573

AZD4573 is a potent inhibitor of CDK9 (IC50 of <0.004 μM) with fast-off binding kinetics (t1/2 = 16 min) and high selectivity versus other kinases, including other CDK family kinases.

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.

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.

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.

S1153

Roscovitine (Seliciclib,CYC202)

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.

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.

S2768

Dinaciclib (SCH727965)

Dinaciclib (SCH727965) 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.

S1230

Flavopiridol (Alvocidib)

Flavopiridol (Alvocidib) 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.

S6871New

Sodium oxamate

Sodium oxamate (SO) 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.

S8815New

BSJ-03-123

BSJ-03-123 is a phthalimide-based degrader of cyclin-dependent kinase 6 (CDK6). (PROTAC)

S7969New

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.

S8903New

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 Tconv cells.

S8894New

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.

S0500New

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.

S0273New

CDK2-IN-73 (CDK2-IN-4)

CDK2-IN-73 (CDK2-IN-4) is a potent and selective inhibitor of CDK2 with IC50 of 44 nM for CDK2/cyclin A.

S6777New

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.

S2642New

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.

S1058New

BI-1347

BI-1347 is small molecule inhibitor of Cyclin-dependent kinase 8(CDK8) with IC50 of 1.1 nM.

S2009New

Indirubin-3'-monoxime

Indirubin-3'-monoxime is a selective CDK inhibitor with IC50 of 0.18 μM, 0.44 μM, 0.25 μM, 3.33 μM, 0.1 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.

S8730New

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.

S8863New

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.

S6595New

THZ531

THZ531 is a selective covalent inhibitor of CDK12 and CDK13 with IC50 values of 158 and 69 nM, respectively.

S6710New

SGC-GAK-1

SGC-GAK-1 is a potent, selective, and cell-active inhibitor of cyclin G-associated kinase (GAK) with Ki value of 3.1 nM and >50-fold selectivity over nearest kinase.

S8809New

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.

S6531New

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.

S6540New

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.

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.

S2679

Flavopiridol HCl

Flavopiridol HCl 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. Phase 1/2.

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.

S2672

PF-00562271 Besylate

PF-00562271 Besylate 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.

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.

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.

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.

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. Phase 1.

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.

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.

S2670

A-674563

A-674563 is an Akt1 inhibitor with Ki of 11 nM in cell-free assays, modest potent to PKA and >30-fold selective for Akt1 over PKC.

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.

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.

S2742

PHA-767491

PHA-767491 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.

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.

S2688

R547

R547 is a potent ATP-competitive inhibitor of CDK1/2/4 with Ki of 2 nM/3 nM/1 nM. It is less potent to CDK7 and GSK3α/β, while inactive to other kinases. Phase 1.

S7198

BIO

BIO 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.

S7440

Ribociclib (LEE011)

Ribociclib (LEE011) is an orally available, and highly specific CDK4/6 inhibitor. Phase 3.

S7114

NU6027

NU6027 is a potent ATR/CDK inhibitor, inhibits CDK1/2, ATR and DNA-PK with Ki 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.

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.

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.

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.

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.

S8568

G1T38

Lerociclib (G1T38) 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 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.

S7747

Ro-3306

RO-3306 is an ATP-competitive, and selective CDK1 inhibitor with Ki of 20 nM, >15-fold selectivity against a diverse panel of human kinases. RO-3306 enhances p53-mediated Bax activation and mitochondrial apoptosis.

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).

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.

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, 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.

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.

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 is a type II CDK2 inhibitor with Kd 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.

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.

S7509

ML167

ML167 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.

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.

S8652

Skp2 inhibitor C1 (SKPin C1)

Skp2 inhibitor C1 (SKPin C1) is a specific and selective small-molecule inhibitor of Skp2-mediated p27 degradation by reducing p27 binding through key compound-receptor contacts.

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, PDGFRβ, FGFR1, RET, and Fyn, respectively.

S5716

Abemaciclib

Abemaciclib is a cell cycle inhibitor selective for CDK4/6 with IC50 of 2 nM and 10 nM in cell-free assays, respectively.

S7461

LDC000067

LDC000067 is a highly selective CDK9 inhibitor with IC50 of 44 nM, 55/125/210/ >227/ >227-fold selectivity over CDK2/1/4/6/7.

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.

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.

S8719

AZD4573

AZD4573 is a potent inhibitor of CDK9 (IC50 of <0.004 μM) with fast-off binding kinetics (t1/2 = 16 min) and high selectivity versus other kinases, including other CDK family kinases.

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.

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.

Tags: CDK inhibition | CDK and cancer | CDK phosphorylation | CDK activity | CDK activation | CDK assay | CDK inhibitors in clinical trials | CDK inhibitor drugs | CDK inhibitor review