PKA
Inhibitory Selectivity
PKA Products
| Catalog No. | Information | Product Use Citations | Product Validations |
|---|---|---|---|
| S1113 |
GSK690693GSK690693 is a pan-Akt inhibitor targeting Akt1/2/3 with IC50 of 2 nM/13 nM/9 nM in cell-free assays, also sensitive to the AGC kinase family: PKA, PrkX and PKC isozymes. GSK690693 also potently inhibits AMPK and DAPK3 from the CAMK family with IC50 of 50 nM and 81 nM, respectively. GSK690693 affects Unc-51-like autophagy activating kinase 1 (ULK1) activity, robustly inhibits STING-dependent IRF3 activation. Phase 1. |
UPN cells were treated with GSK690693 or MK2206 (1 uM) for 1h followed by LPA (10 uM), EGF or IGF-1 (10 ng/ml) for another 1h and Western blot was performed. Band intensities of phospho-AKT (p-AKTS473), phospho-S6 (p-S6S240/S244), phospho-YB-1 (p-YB-1S102) and YB-1 were quantified and normalized to the intensity of ERK2. It directly determined the role of AKT using two potent, AKT inhibitors with distinct actions—a catalytic domain inhibitor, GSK690693, and an allosteric inhibitor, MK2206 -in UPN and SKOV3 cells, which showed appreciable AKT and YB-1 phosphorylation upon growth factor stimulation. GSK690693 increased basal and growth factor-induced AKT phosphorylation due to blocking a negative feedback loop downstream of AKT, whereas MK2206 abolished both basal and growth-factor-induced AKT phosphorylation.
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| S1573 |
Fasudil (HA-1077) HClFasudil(HA-1077), a potent and selective inhibitor of Rho kinase, displays less potent inhibiton over PKA, PKG, PKC and MLCK with Ki of 1.6, 1.6, 3.3, and 36 μM in cell-free assays, respectively. Fasudil is also a calcium channel blocker. |
The ROCK inhibitors fasudil and Y27632 prevented SCP2 cell bone metastasis in nude mice (n = 10 per group). Shown are BLI images of bone metastases, IHC analyses of SMAD3 C-tail phosphorylation and PTHLH, osteoclast TRAP staining, and BLI quantitation. |
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| S2670 |
A-674563A-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. |
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. |
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| S1582 |
H 89 2HClH 89 2HCl is a potent PKA inhibitor with Ki of 48 nM in a cell-free assay, 10-fold selective for PKA than PKG,500-fold greater selectivity than PKC, MLCK, calmodulin kinase II and casein kinase I/II. H 89 2HCl induces autophagy. |
The effects of H89 on bTSH-induced FASN downregulation in 3T3-L1 adipocytes. Differentiated 3T3-L1 adipocytes were pretreated with either 20 µmol/L H89 or vehicle for 1 h, then treated with 0.2 µM bTSH for 8 h. Levels of FASN, pCREB, pERK1/2 and pJNK were determined by Western blotting.
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| S1421 |
StaurosporineStaurosporine (CGP 41251) is a potent PKC inhibitor for PKCα, PKCγ and PKCη with IC50 of 2 nM, 5 nM and 4 nM, less potent to PKCδ (20 nM), PKCε (73 nM) and little active to PKCζ (1086 nM) in cell-free assays. Also shows inhibitory activities on other kinases, such as PKA, PKG, S6K, CaMKII, etc. Phase 3. |
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| S2554 |
DaphnetinDaphnetin, a natural coumarin derivative, is a protein kinase inhibitor, inhibits EGFR, PKA and PKC with IC50 of 7.67 μM, 9.33 μM and 25.01 μM, respectively, also known to exhibit anti-inflammatory and anti-oxidant activities. |
C57/BL6 mice (5 mice/group) were intraperitoneally injected with daphnetin (DFN, 5 mg/kg) or DMSO, and then challenged with LPS (37.5 mg/kg) or saline. 16 h after LPS challenge, mice were sacrificed, and then lung and serum were collected. c, Representative photomicrographs showed H&E staining of lung tissue.
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| S8388 |
ML-7 HClML-7 is an inhibitor of smooth muscle myosin light chain kinase (MLCK) with a Ki value of 0.3 µM and displays reversible, ATP-competitive inhibition of Ca2+-calmodulin-dependent and -independent smooth muscle MLCKs. ML-7 also inhibits PKA and PKC with Ki of 21 μM and 42 μM, respectively. |
Platelets (3 × 108/mL) were treated with ML-7 (5 µM) for 20 minutes, followed by stimulation with oxLDL (50 µg/mL) for 15 seconds. Samples were then lysed, separated by SDS-PAGE, and immunoblotted for phospho-MLCSer19 followed by reprobing for β-tubulin. (Ai) Representative blots. (Aii) Densitometric analysis of 5 independent experiments. *P < .05.
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| S7563 |
AT13148AT13148 is an oral, ATP-competitive, multi-AGC kinase inhibitor with IC50 of 38 nM/402 nM/50 nM, 8 nM, 3 nM, and 6 nM/4 nM for Akt1/2/3, p70S6K, PKA, and ROCKI/II, respectively. Phase 1. |
AT13148 exerts cytotoxic and anti-proliferative activity against human gastric cancer cells. Human gastric cancer cells (HGC-27, AGS, SNU-601, N87 and MKN-28 lines) or GEC-1 gastric epithelial cells were treated with applied concentration of AT13148 for indicated time, cell survival (A and E), cell proliferation (B and F), cell cycle distribution (C, for HGC-27 cells) and cell death (D, for HGC-27 cells) were tested by the described assays, separately. Data were presented as mean ± SD. “Ctrl” stands for untreated control cells (For all figures). “hr/hrs” stands for hour/hours (For all figures). Experiments in this figure were repeated for five times. *p < 0.05 vs. “Ctrl” group.
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| S7857 |
8-Bromo-cAMP8-bromo-cAMP is a cell permeable analog of cAMP that activates cyclic-AMP-dependent protein kinase with a Ka value of 0.05 μM; and a PKA activator. |
(E) 8-Bromo-cAMP treatment could not restore the T cell defects in rpc9-/- mutants. |
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| S7858 |
Dibutyryl-cAMP (Bucladesine)Dibutyryl-cAMP (Bucladesine) is a cell-permeable PKA activator by mimicing the action of endogenous cAMP. Dibutyryl-cAMP (Bucladesine) is also a phosphodiesterase (PDE) inhibitor. |
| Catalog No. | Information | Product Use Citations | Product Validations |
|---|---|---|---|
| S1113 |
GSK690693GSK690693 is a pan-Akt inhibitor targeting Akt1/2/3 with IC50 of 2 nM/13 nM/9 nM in cell-free assays, also sensitive to the AGC kinase family: PKA, PrkX and PKC isozymes. GSK690693 also potently inhibits AMPK and DAPK3 from the CAMK family with IC50 of 50 nM and 81 nM, respectively. GSK690693 affects Unc-51-like autophagy activating kinase 1 (ULK1) activity, robustly inhibits STING-dependent IRF3 activation. Phase 1. |
UPN cells were treated with GSK690693 or MK2206 (1 uM) for 1h followed by LPA (10 uM), EGF or IGF-1 (10 ng/ml) for another 1h and Western blot was performed. Band intensities of phospho-AKT (p-AKTS473), phospho-S6 (p-S6S240/S244), phospho-YB-1 (p-YB-1S102) and YB-1 were quantified and normalized to the intensity of ERK2. It directly determined the role of AKT using two potent, AKT inhibitors with distinct actions—a catalytic domain inhibitor, GSK690693, and an allosteric inhibitor, MK2206 -in UPN and SKOV3 cells, which showed appreciable AKT and YB-1 phosphorylation upon growth factor stimulation. GSK690693 increased basal and growth factor-induced AKT phosphorylation due to blocking a negative feedback loop downstream of AKT, whereas MK2206 abolished both basal and growth-factor-induced AKT phosphorylation.
|
|
| S1573 |
Fasudil (HA-1077) HClFasudil(HA-1077), a potent and selective inhibitor of Rho kinase, displays less potent inhibiton over PKA, PKG, PKC and MLCK with Ki of 1.6, 1.6, 3.3, and 36 μM in cell-free assays, respectively. Fasudil is also a calcium channel blocker. |
The ROCK inhibitors fasudil and Y27632 prevented SCP2 cell bone metastasis in nude mice (n = 10 per group). Shown are BLI images of bone metastases, IHC analyses of SMAD3 C-tail phosphorylation and PTHLH, osteoclast TRAP staining, and BLI quantitation. |
|
| S2670 |
A-674563A-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. |
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. |
|
| S1582 |
H 89 2HClH 89 2HCl is a potent PKA inhibitor with Ki of 48 nM in a cell-free assay, 10-fold selective for PKA than PKG,500-fold greater selectivity than PKC, MLCK, calmodulin kinase II and casein kinase I/II. H 89 2HCl induces autophagy. |
The effects of H89 on bTSH-induced FASN downregulation in 3T3-L1 adipocytes. Differentiated 3T3-L1 adipocytes were pretreated with either 20 µmol/L H89 or vehicle for 1 h, then treated with 0.2 µM bTSH for 8 h. Levels of FASN, pCREB, pERK1/2 and pJNK were determined by Western blotting.
|
|
| S1421 |
StaurosporineStaurosporine (CGP 41251) is a potent PKC inhibitor for PKCα, PKCγ and PKCη with IC50 of 2 nM, 5 nM and 4 nM, less potent to PKCδ (20 nM), PKCε (73 nM) and little active to PKCζ (1086 nM) in cell-free assays. Also shows inhibitory activities on other kinases, such as PKA, PKG, S6K, CaMKII, etc. Phase 3. |
|
|
| S2554 |
DaphnetinDaphnetin, a natural coumarin derivative, is a protein kinase inhibitor, inhibits EGFR, PKA and PKC with IC50 of 7.67 μM, 9.33 μM and 25.01 μM, respectively, also known to exhibit anti-inflammatory and anti-oxidant activities. |
C57/BL6 mice (5 mice/group) were intraperitoneally injected with daphnetin (DFN, 5 mg/kg) or DMSO, and then challenged with LPS (37.5 mg/kg) or saline. 16 h after LPS challenge, mice were sacrificed, and then lung and serum were collected. c, Representative photomicrographs showed H&E staining of lung tissue.
|
|
| S8388 |
ML-7 HClML-7 is an inhibitor of smooth muscle myosin light chain kinase (MLCK) with a Ki value of 0.3 µM and displays reversible, ATP-competitive inhibition of Ca2+-calmodulin-dependent and -independent smooth muscle MLCKs. ML-7 also inhibits PKA and PKC with Ki of 21 μM and 42 μM, respectively. |
Platelets (3 × 108/mL) were treated with ML-7 (5 µM) for 20 minutes, followed by stimulation with oxLDL (50 µg/mL) for 15 seconds. Samples were then lysed, separated by SDS-PAGE, and immunoblotted for phospho-MLCSer19 followed by reprobing for β-tubulin. (Ai) Representative blots. (Aii) Densitometric analysis of 5 independent experiments. *P < .05.
|
|
| S7563 |
AT13148AT13148 is an oral, ATP-competitive, multi-AGC kinase inhibitor with IC50 of 38 nM/402 nM/50 nM, 8 nM, 3 nM, and 6 nM/4 nM for Akt1/2/3, p70S6K, PKA, and ROCKI/II, respectively. Phase 1. |
AT13148 exerts cytotoxic and anti-proliferative activity against human gastric cancer cells. Human gastric cancer cells (HGC-27, AGS, SNU-601, N87 and MKN-28 lines) or GEC-1 gastric epithelial cells were treated with applied concentration of AT13148 for indicated time, cell survival (A and E), cell proliferation (B and F), cell cycle distribution (C, for HGC-27 cells) and cell death (D, for HGC-27 cells) were tested by the described assays, separately. Data were presented as mean ± SD. “Ctrl” stands for untreated control cells (For all figures). “hr/hrs” stands for hour/hours (For all figures). Experiments in this figure were repeated for five times. *p < 0.05 vs. “Ctrl” group.
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| Catalog No. | Information | Product Use Citations | Product Validations |
|---|---|---|---|
| S7857 |
8-Bromo-cAMP8-bromo-cAMP is a cell permeable analog of cAMP that activates cyclic-AMP-dependent protein kinase with a Ka value of 0.05 μM; and a PKA activator. |
(E) 8-Bromo-cAMP treatment could not restore the T cell defects in rpc9-/- mutants. |
|
| S7858 |
Dibutyryl-cAMP (Bucladesine)Dibutyryl-cAMP (Bucladesine) is a cell-permeable PKA activator by mimicing the action of endogenous cAMP. Dibutyryl-cAMP (Bucladesine) is also a phosphodiesterase (PDE) inhibitor. |
