Isolation and primary structure of bombyxin-IV, a novel molecular species of bombyxin from the silkworm, Bombyx mori.

Abstract
From 1.2 × 106male adult heads of the silkworm, Bombyx mori, 0.16mg of bombyxin-IV was isolated, which was a novel molecular species of bombyxin, previously called 4K-prothoracicotropic hormone. Injection of 0.1 ng of bombyxin-IV into a dauer pupa of the Eri-silkworm, Samia cynthia ricini, evoked adult development. Microsequencing, chemical modification, enzymatic digestion, and fast atom bombardment mass spectrometry showed that bombyxin-IV consisted of two heterogeneous peptides linked by disulfide bonds and had a considerable sequence homology (62.5%) with bombyxin-II.

This publication has 0 references indexed in Scilit: