Guanxitoxin 1E 是 KV2.1 和 KV2.2 通道的有效选择性阻断剂。
Kv2.1 and Kv2.2 channel blocker (IC50 values are 1-3 nM). Enhances glucose-stimulated insulin secretion from human islets in vitro, but not from islet cells lacking the Kv2.1 channel. Has no significant effect on plasma insulin, glucagon or blood glucose levels in mice, but increases plasma somatostatin levels.
Li et al (2013) The role of voltage-gated potassium channels Kv2.1 and Kv2.2 in the regulation of Ins and somatostatin release from pancreatic islets. J.Pharmacol.Exp.Ther. 344 407 PMID:23161216 |Herrington (2007) Gating modifier peptides as probes of pancreatic beta-cell physiology. Toxicon 49 231 PMID:17101164
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