Amino acid sequence determination of a protein purified from the shell of the shrimp, Pandalus borealis

Abstract

One of the urea-extractable proteins in the shell of the shrimp Pandalus borealis has been purified, and the complete amino acid sequence has been determined by the combined use of mass spectrometry and Edman degradation of the intact protein as well as of enzymatically derived peptides.

Characteristic features of the sequence are discussed and compared to sequences from insect cuticular proteins and other structural proteins.