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An X‐ray study of poly( L ‐prolyl‐ L ‐α‐phenylglycyl‐ L ‐proline)
Author(s) -
Pra A. Del,
Palumbo M.,
Goodman M.
Publication year - 1976
Publication title -
biopolymers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.556
H-Index - 125
eISSN - 1097-0282
pISSN - 0006-3525
DOI - 10.1002/bip.1976.360150306
Subject(s) - proline , orthorhombic crystal system , chemistry , crystallography , stereochemistry , x ray , crystal structure , amino acid , biochemistry , physics , quantum mechanics
Abstract X‐ray diffraction studies have been made on the polytripeptide poly( L ‐prolyl‐ L ‐α‐phenylglycyl‐ L ‐proline). Its structure has been found to be helical, with a poly( L ‐proline) II conformation, packed in an orthorhombic lattice, space group P2 1 2 1 2, with a = 14.3 Å, b = 13.5 Å, and c = 9.4 Å.