TERMINAL AMINO ACIDS OF HUMAN AND BOVINE GAMMA GLOBULIN

Abstract

The N-terminal amino acids of a preparation of human gamma globulin have been found to be aspartic acid and glutamic acid in confirmation of other work. The C-terminal amino acids in this protein appear to be glycine and serine. Bovine gamma globulin has aspartic acid, glutamic acid, serine, alanine, and valine in N-terminal positions as other work has indicated. This protein has the same C-terminal residues (glycine and serine) as has human gamma globulin.