Calphostin C is a protein kinase C inhibitor.

PF-04577806 is a potent, selective, and ATP competitive inhibitor of the protein kinase C (PKC). It exhibits significant inhibitory activity against various isoforms of PKC, including PKCα, PKCβI, PKCβII, PKCγ, and PKCθ, with IC50 values of 2.4 nM, 8.1 nM, 6.9 nM, 45.9 nM, and 29.5 nM, respectively. Furthermore, PF-04577806 has the ability to reverse retinal vascular leakage in diabetic rats.

(-)-Maackiain是一种天然的炎症调节剂，抑制组胺H1受体和IL-4基因的转录上调，抑制PKCδ的激活，激活caspase-1途径并促进IL-1β的产生。

CREBtide is a synthetic substrate for PKA (Km=3.9 µM), which is based on the phosphorylation sequence in d-CREB (cAMP response element binding protein).

K-252b is an indolocarbazole isolated from the actinomycete Nocardiopsis and is a PKC inhibitor. K-252b can be used to inhibit extracellular kinases of cells in culture because it can’t pass through the cell membrane freely.

Sphingosine (d14:1) is a bioactive sphingolipid that has been found in B. mori (silkworm), P. clarkii (crayfish), and A. aurita (jellyfish) extracts. It increases the germination rate of N. rileyi, an entomopathogenic fungus, with an EC50 value of 10.2 nM. Sphingosine (d14:1) inhibits protein kinase C (PKC) in vitro (IC50 = 7.3 mol%) as well as superoxide generation induced by phorbol 12-myristate 13-acetate in neutrophils and reduces growth of CHO cells (IC50s = 19 and 8 μM, respectively).

Bisindolylmaleimide III hydrochloride 是一种强效、高度选择性的蛋白激酶 C (PKC) 抑制剂。它通过竞争性结合 PKC 催化结构域中的 ATP 口袋，彻底阻断底物磷酸化级联反应，广泛用于探究免疫细胞活化及肿瘤克隆增殖机制。

Z-Arg-SBzl 是牛和人激活蛋白C 的底物。

15:0 PG sodium 是线粒体和微粒体膜中的阴离子磷脂，作为蛋白激酶 C 家族的激活剂，对肺表面活性剂组成尤其是肺部层状体膜内起着关键角色。