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Helix–coil transition in copolypeptides. II. Poly(γ-benzyl L-glutamate-co-ε-carbobenzoxy-L-lysine)

✍ Scribed by A. Roig; F. García Blanco; M. Cortijo

Publisher
Wiley (John Wiley & Sons)
Year
1971
Tongue
English
Weight
353 KB
Volume
10
Category
Article
ISSN
0006-3525

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✦ Synopsis

Abstract

The thermal helix–coil transition of poly(γ‐benzyl L‐glutamate‐co‐ε‐carbobenzoxy‐L‐lysine) copolypeptides was studied in solvent mixtures of different compositions. The cooperativity parameter v changes linearly with polymer (and solvent) composition, whereas the heat of the transition shows a very pronounced minimum as a function of polymer composition. This minimum cannot be due only or mainly to the solvent changes and must be attributed to the effect on the transition of the side chains of the polypeptides.

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