Biological ActivityMargatoxin is a potent KV1.3 channel blocker (IC50 = 36 pM). Displays no effect at calcium-activated channels. Reduces VEGF-induced transmembrane calcium influxes and nitric oxide production in human endothelial cells.
(Modifications: Disulfide bridges: 7-29, 13-34, 17-36)
The technical data provided above is for guidance only.
For batch specific data refer to the Certificate of Analysis.
Tocris products are intended for laboratory research use only, unless stated otherwise.
Purification, characterization, and biosynthesis of Margatoxin, a component of Centruroides margaritatus venom that selectively inhibits voltage-dependent potassium channels.
Garcia-Calvo et al.
Margatoxin inhibits VEGF-induced hyperpolarization, proliferation and nitric oxide production of human endothelial cells.
Erdogan et al.
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