Purification of a novel pancreatic secretory factor (PSF) and a novel peptide with VIP- and secretin-like properties (helodermin) from Gila monster venom

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Abstract

A combination of three HPLC procedures applied to the venom of Gila monster (Heloderma suspectum) has led to the purification to homogeneity of two bioactive components: (i) a 17.5 kDa protein, isolated on the basis of its potent secretory effect on dispersed rat pancreatic acini, was accordingly designated PSF (pancreatic secretory factor); (ii) a 5.9-kDa peptide, designated helodermin, was purified on the basis of its ability to stimulate adenylate cyclase in rat pancreatic membranes. PSF was unable to activate adenylate cyclase and, conversely, helodermin was devoid of secretory action. © 1984.

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Vandermeers, A., Vandermeers-Piret, M. C., Robberecht, P., Waelbroeck, M., Dehaye, J. P., Winand, J., & Christophe, J. (1984). Purification of a novel pancreatic secretory factor (PSF) and a novel peptide with VIP- and secretin-like properties (helodermin) from Gila monster venom. FEBS Letters, 166(2), 273–276. https://doi.org/10.1016/0014-5793(84)80094-0

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