Mezerein is a PKC activator that exhibits antileukemic properties. Mezerein inhibits the growth of yeast expressing PKC alpha (IC50=1190 nM), PKC beta1 (IC50=908 nM), and PKC delta (IC50=141 nM) but not of yeast expressing PKC.

Bisindolylmaleimide XI hydrochloride (Ro 32-0432) is a potent, selective and orally active PKC inhibitor with IC50s of 9 nM, 28 nM, 31 nM, 37 nM, and 108 nM for PKCα, PKCβI, PKCβII, PKCγ, and PKCε, respectively.

PF-03622905 is a potent and ATP-competitive PKC inhibitor with IC50s of 5.6 nM, 14.5 nM, 13 nM, 37.7 nM, and 74.1 nM for PKCα, PKCβI, PKCβII, PKCγ, and PKCθ, respectively. PF-03622905 shows high specificity for PKC over other protein kinases.

Myelin Basic Protein (MHP4-14) TFA, a synthetic peptide comprising residues 4-14 of myelin basic protein, is a very selective PKC substrate (Km=7 μM). Myelin Basic Protein TFA is not phosphorylated by cyclic AMP-dependent protein kinase, casein kinases I and II, Ca2+/calmodulin-dependent protein kinase II, or phosphorylase kinase, and can be routinely used for the assay of protein kinase C with low background in the crude tissue extracts.

Sangivamycin (NSC 65346), a nucleoside analog, is a potent inhibitor of protein kinase C (PKC) with an Ki of 10 μM. Sangivamycin has potent antiproliferative activity against a variety of human cancers.

Bryostatin 3, a macrocyclic lactone, is a protein kinase C activator, with a Ki of 2.75 nM. Bryostatin 3 can block 12-O-tetradecanoylphorbol-13-acetate (TPA) inhibition of cell proliferation, yet did not block TPA-enhanced cell-substratum adhesion.

PF-04577806 is a potent, selective and ATP competitive PKC inhibitor. PF-04577806 shows potent inhibitory activity towards PKCα, PKCβI, PKCβII, PKCγ, and PKCθ with IC50s of 2.4 nM, 8.1 nM, 6.9 nM, 45.9 nM, and 29.5 nM, respectively. PF-04577806 can reverse retinal vascular leakage in diabetic rats.

(±)-1,2-Diolein (1,2-Dioleoyl-rac-glycerol) is a PKC activator.

1,2-Didecanoylglycerol, a synthetic diacylglycerol, is metabolized by platelets to 1,2-didecanoylphosphatidic acid (PA10) and activates protein kinase C (PKC).

1-Oleoyl-2-acetyl-sn glycerol is a synthetic, cell permeable diacylglycerol analog. 1-Oleoyl-2-acetyl-sn glycerol activates calcium-dependent protein kinase C (PKC) and induces the superoxide-production.

Teleocidin A1 (Lyngbyatoxin A), a highly toxic skin irritant, is a potent activator of protein kinase C (PKC). Teleocidin A1 shows antiproliferative activity against HeLa cancer cells (IC50=9.2 nM).

SC-9 is a PKC activator in the presence of Ca2+.

Safingol is a lyso-sphingolipid PKC (protein kinase C ) inhibitor.

1,2-Dimyristoyl-sn-glycerol is a saturated diacylglycerol and a weak second messenger for the activation of PKC.

H-7 is a specific protein kinase C inhibitor, which inhibits superoxide release from human neutrophils (PMN) stimulated with phorbol myristate acetate or synthetic diacylglycerol.

NP627 (NP-627) is a specific small-molecule inhibitor of protein kinase C deltaI (PKCδI) with Kd of 1 nM.NP627 inhibits the cleavage of PKCδI in adipocyte (at 10 nM) and decreases PKCδI kinase activity.NP627 does not inhibit other PKC isozyme activities.NP627 prevents caspase-3 mediated cleavage of PKCδI, significantly inhibits PKCδI catalytic fragment release, decreases inflammation and apoptosis, and significantly improves mitochondrial metabolism in human adipocytes from obese individuals.

PKCθ inhibitor 22 is a potent, selective, orally bioavailable inhibitor of Protein Kinase Cθ (PKCθ) with IC50 of 6 nM.PKCθ inhibitor 22 inhibits IL-2 release from PBMCs following stimulation with anti-CD3/CD28 (IC50=0.19 uM).PKCθ inhibitor 22 also inhibits the release of IL-17 from CD3/CD28 stimulated Th-17 cells with an IC50 of 1 uM.PKCθ inhibitor 22 demonstrated a reduction of symptoms in a mouse model of multiple sclerosis.

Bisindolylmaleimide II is a general inhibitor of all PKC subtypes.

7-Oxostaurosporine is a potent protein kinase C (PKC) inhibitor that effectively inhibits tumor growth by inducing apoptosis and inhibiting the nuclear factor (NF)-κB/p-p65 pathway.

Z640 is a novel non-selective atypical PKC (aPKC) agonist, increases PKCζ and PKCι kinase activity with EC50 of 1.09 and 3.47 µM in vitro kinase activity assays, respectively.