PKI(5-24) is a potent, competitive, and synthetic peptide inhibitor of PKA (cAMP-dependent protein kinase), with a Ki of 2.3 nM. PKI(5-24) corresponds to residues 5-24 in the naturally occurring heat-stable protein kinase inhibitor[1][2].
Fasudil is a potent inhibitor of ROCK1, PKA, PKC, and MLCK with Ki of 0.33 μM, 1.0 μM, 9.3 μM and 55 μM, respectively.
Gliotoxin is a secondary metabolite, the most abundant mycotoxin secreted by A. fumigatus, inhibits the phagocytosis of macrophages and the immune functions of other immune cells [1]. Gliotoxin inhibits inducible NF-κB activity by preventing IκB degradation, which consequently induces host-cell apoptosis[2]. Gliotoxin activates PKA and increases intracellular cAMP concentration; modulates actin cytoskeleton rearrangement to facilitate A. fumigatus internalization into lung epithelial cells[3].
PKI (14-24)amide TFA is a potent PKA inhibitor. PKI (14-24)amide strongly inhibited cyclic AMP-dependent protein kinase activity in the cell homogenate[1][2].
CREBtide, a synthetic 13 amino acid peptide, has been reported as a PKA substrate.
8-Bromo-cAMP sodium salt (8-Br-Camp sodium salt), a cyclic AMP analog, is an activator of cyclic AMP-dependent protein kinase (PKA)[1].
6-Bnz-cAMP sodium salt is a cell-permeable cAMP analog. 6-Bnz-cAMP selectively activates cAMP-dependent PKA but not Epac signaling pathways[1].
AT7867 dihydrochloride is a potent ATP-competitive inhibitor of Akt1/Akt2/Akt3 and p70S6K/PKA with IC50s of 32 nM/17 nM/47 nM and 85 nM/20 nM, respectively.
Staurosporine is a potent and non-selective inhibitor of protein kinases with IC50s of 6 nM, 15 nM, 2 nM, and 3 nM for PKC, PKA, c-Fgr, and Phosphorylase kinase respectively.
Cys-Kemptide is a cysteine-terminated substrate peptide that can used to measure protein kinase A (PKA) activity[1].
H-Arg-Gly-Tyr-Ala-Leu-Gly-OH is a competitive and CAMP dependent protein kinase inhibitor[1].
A-3 hydrochloride is a potent, cell-permeable, reversible, ATP-competitive non-selective antagonist of various kinases. It against PKA (Ki=4.3 µM), casein kinase II (Ki=5.1 µM) and myosin light chain kinase (MLCK) (Ki=7.4 µM). A-3 hydrochloride also inhibits PKC and casein kinase I with Ki values of 47 µM and 80 µM, respectively[1].
AT13148 is an orally active and ATP-competitive, multi-AGC kinase inhibitor with IC50s 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.
HA-1004 is a selective inhibitor of PKA, which can inhibit lipolysis and induce vascular relaxation. HA-1004 is also a dual inhibitor of cyclic GMP-dependent protein kinase and cyclic AMP-dependent protein, and is involved in smooth muscle, second messenger, cyclic AMP and cyclic GMP regulation mechanisms. HA-1004 can be used as a vasodilator to inhibit the contraction of rabbit aortic strips, or to antagonize ERK and tyrosine hydroxylase (TH) phosphorylation in morphine abstinence rat models[1][2][3].
H-89 dihydrochloride is a potent inhibitor of protein kinase A (PKA) with an IC50 of 48 nM and has weak inhibition on PKG, PKC, Casein Kinase.
PKI(5-22)amide is the active inhibitory fragment of the inhibitor of the cyclic AMP-dependent protein kinase (PKA). PKI(5-22)amide inhibits PKA activation, but fails to attenuate homologous desensitization of CRF1 receptors[1][2].
Warangalone is an anti-malarial compound which can inhibit the growth of both strains of parasite 3D7 (chloroquine sensitive) and K1 (chloroquine resistant) with IC50s of 4.8 μg/mL and 3.7 μg/mL, respectively. Warangalone can also inhibit cyclic AMP-dependent protein kinase catalytic subunit (cAK) with an IC50 of 3.5 μM.
Rp-cAMPS, a cAMP analog, is a potent, competitive cAMP-induced activation of cAMP-dependent PKA I and II (Kis of 12.5 µM and 4.5 µM, respectively) antagonist. Rp-cAMPS is resistant to hydrolysis by phosphodiesterases[1][2][3][4][5][6].
Jaspamycin (7-CN-7-C-Ino) is a potent activator of PKA, binding to the R site (PKAR), with an EC50 of 6.5 nM and Kd of 8 nM in Trypanosoma brucei. Jaspamycin (7-CN-7-C-Ino) does not bind with purified human PKARIα. Anti-parasite activity[1].
Sp-cAMPS triethylamine, a cAMP analog, is potent activator of cAMP-dependent PKA I and PKA II. Sp-cAMPS triethylamine is also a potent, competitive phosphodiesterase (PDE3A) inhibitor with a Ki of 47.6 µM. Sp-cAMPS triethylamine binds the PDE10 GAF domain with an EC50 of 40 μM[1][2][3].
K-252a, a staurosporine analog isolated from Nocardiopsis sp. soil fungi, inhibits protein kinase, with IC50 values of 470 nM, 140 nM, 270 nM, and 1.7 nM for PKC, PKA, Ca2+/calmodulin-dependent kinase type II, and phosphorylase kinase, respectively[1][2].
Fasudil (HA-1077; AT877) dihydrochloride is a nonspecific RhoA/ROCK inhibitor and also has inhibitory effect on protein kinases, with an Ki of 0.33 μM for ROCK1, IC50s of 0.158 μM and 4.58 μM, 12.30 μM, 1.650 μM for ROCK2 and PKA, PKC, PKG, respectively. Fasudil dihydrochloride is also a potent Ca2+ channel antagonist and vasodilator[1][2][3].
4′-Demethylnobiletin is a bioactive metabolite that activates the PKA/ERK/CREB signaling pathway, enhances CRE-mediated transcription in hippocampal neurons, and reverses memory impairment associated with NMDA receptor antagonism by stimulating ERK signaling[1].
Akt1&PKA-IN-1 is a potent dual Akt/PKA inhibitor with IC50 values of 0.03 , 0.11 μM, and 9.8 μM for PKAa, Akt, and CDK2, respectively. Akt1&PKA-IN-1 is selective for cyclin-dependent kinase 2 (CDK2)[1].
Rp-cAMPS sodium salt, a cAMP analog, is a potent, competitive cAMP-induced activation of cAMP-dependent PKA I and II (Kis of 12.5 µM and 4.5 µM, respectively) antagonist. Rp-cAMPS sodium salt is resistant to hydrolysis by phosphodiesterases[1][2][3][4][5][6].
Rp-8-CPT-cAMPS sodium, a cAMP analog, is a potent and competitive antagonist of cAMP-induced activation of cAMP-dependent PKA I and II. Rp-8-CPT-cAMPS sodium preferentially selects site A of RI compares to site A of RII and site B of RII compares to site B of RI[1][2].
PKI (14-24)amide is a potent PKA inhibitor. PKI (14-24)amide strongly inhibited cyclic AMP-dependent protein kinase activity in the cell homogenate[1][2].
Sp-cAMPS sodium salt, a cAMP analog, is potent activator of cAMP-dependent PKA I 和 PKA II. Sp-cAMPS sodium salt is also a potent, competitive phosphodiesterase (PDE3A) inhibitor with a Ki of 47.6 µM. Sp-cAMPS sodium salt binds the PDE10 GAF domain with an EC50 of 40 μM[1][2][3].
CCG215022 is a G protein-coupled receptor kinases (GRKs) inhibitor with IC50s of 0.15±0.07 μM, 0.38±0.06 μM and 3.9±1 μM for GRK2, GRK5 and GRK1, respectively.
Rp-cAMPS triethylammonium salt is an analog of cAMP which acts as a potent, competitive and cell-permeable antagonist of cAMP-induced activation of cAMP-dependent PKA I and II (Kis of 6.05 µM and 9.75 µM, respectively). Rp-cAMPS triethylammonium salt is resistant to hydrolysis by phosphodiesterases[1][2][3][4][5].