Accession Number:

AD0005976

Title:

COMPOSITION, PROPERTIES, AND STRUCTURE OF PROTEINS, AMINO ACIDS, AND PEPTIDES

Descriptive Note:

Semi-annual progress rept. 1 Jul-31 Dec 1952

Corporate Author:

COLUMBIA UNIV NEW YORK COLL OF PHYSICIANS AND SURGEONS

Personal Author(s):

Report Date:

1953-01-31

Pagination or Media Count:

5.0

Abstract:

L-and D-Amino acids D-Glutamic acid I, D-valine, and D-tyro sine were prepared by enzymic or alkaloid resolutions. Difficulties encountered with the enzymic procedure necessitated the alkaloid preparation of D-ornithine, I, and D-serine. Peptides Tripeptides were synthesized without racemization by coupling Z. Ala.OH with H.Ala-Ala.OBz. The synthesis of hydrocholrides of pentapeptide and decapeptide corresonding to Gramiciden-S are reported.

Subject Categories:

  • Biochemistry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE