Background:

Xenopsin: the neurotensin-like octapeptide from Xenopus skin at the carboxyl terminus of its precursor.

Xenopsin is one of the peptides found in amphibian skin. Xenopsin consists of eight amino acids and is present in relatively high amounts in skin extracts from Xenopus laevis[1].

[1]. Sures I, et al. Xenopsin: the neurotensin-like octapeptide from Xenopus skin at the carboxyl terminus of its precursor. Proc Natl Acad Sci U S A. 1984 Jan;81(2):380-4.