Subtilisin BPN'
IV. ISOLATION AND SEQUENCE OF TWO ARGININE-CONTAINING PEPTIDES
Charles B. Kasper 1 and Emil L. Smith 1
From the
1 From the Department of Biological Chemistry, U.C.L.A School of Medicine, University of California, Los Angeles, California 90024
A tryptic digest of diisopropylphosphoryl-subtilisin BPN' was fractionated on a column of Dowex 1, and the two arginine-containing peptides were isolated. The sequences of a decapeptide and a hexadecapeptide are given. With these 26 residues added to 178 already reported, 204 of the 280 residues of the protein have been obtained in tryptic peptides.
Submitted on March 21, 1966