Urechistachykinin I is a tachykinin-related neuropeptide isolated from the ventral nerve cords of the echiuroid worm Urechis unicinctus. Its amino acid sequence has high homology with vertebrate and insect tackykinins. Urechistachykinin I potentiates spontaneous rhythmic contractions of the cockroach hindgut. Ikeda, T.; et al., Biochem. Biophys. Res. Commun., 192, 1, (1993).
M.W.: 1176.35


