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。

Z-Arg-SBzl 是牛和人激活蛋白C 的底物。

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。

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).

Dihydrosphingosine is a Protein kinase C inhibitor.

PKC-theta inhibitor 1 is an inhibitor of PKCθ (Ki of 6 nM)

Bisindolylmaleimide I HCl is a specific ATP-competitive PKC inhibitor.

Selective cell-permeable peptide inhibitor of protein kinase C (IC50 ~ 0.5 μM). Consists of amino acids 19 - 31 of PKC pseudosubstrate domain linked by a disulphide bridge to a cell permeabilisation Antennapedia domain vector peptide. The Antennapedia pep

(-)-Indolactam V is a PKC activator (Kis: 3.36 nM, 1.03 μM for η-CRD2 , γ-CRD2). (-)-Indolactam V also has the Kds are 5.5 nM (η-C1B), 7.7 nM (ε-C1B), 8.3 nM (δ-C1B), 18.9 nM (β-C1A-long), 20.8 nM (α-C1A-long), 137 nM (β-C1B), 138 nM (γ-C1A), 213 nM (γ-C1