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Poly(Pro‐Nle‐Gly): Can an amorphus polypeptide take up a supramolecular elastinlike structure?
Author(s) -
Tamburro A. M.,
Gordini D. Daga
Publication year - 1985
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.360241002
Subject(s) - supramolecular chemistry , electron micrographs , chemistry , elastin , crystallography , polymer , micrograph , protein secondary structure , electron microscope , supramolecular assembly , stereochemistry , biophysics , scanning electron microscope , crystal structure , biochemistry , materials science , organic chemistry , physics , optics , composite material , biology , medicine , pathology
Poly(Pro‐Nle‐Gly) was found to have a CD spectrum characteristic of a random polypeptide and an x‐ray powder pattern that does not reveal any regular secondary structure. In its electron micrograph, however, filaments and fibers were seen. This is a random polymer with supramolecular structure. It suggests that the supramolecular structure seen in electron micrographs of elastin preparations and related polypeptides does not necessarily imply an ordered structure at the molecular level.