Gallein是一种 G 蛋白 βγ 亚基(Gβγ subunit)信号抑制剂，能干扰 βγ 亚基与 PI3Kγ 的相互作用，具有抗肿瘤和抗炎作用。

YM-254890 works as both a selective inhibitor of the Gq protein subfamily and a novel platelet aggregation inhibitor with IC50 value below 0.6μM by blocking the P2Y1 receptor-signal transduction pathway. It isolated from the culture broth of strain QS3666.

Mas7, structural analogue of mastoparan isolated from wasp venom, is an activator of G protein via Gαi and Gαo stimulation.

0990CL is a specific heterotrimeric Gαi subunit inhibitor by direct interaction with Gαi. 0990CL is able to block α2AR mediated regulation of cAMP[1].