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Helix–coil transition in poly(γ‐benzyl‐ L ‐glutamate) and poly‐ε‐carbobenzoxy‐ L ‐lysine
Author(s) -
Cortijo M.,
Roig A.,
Blanco F. Garcia
Publication year - 1969
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.1969.360070304
Subject(s) - chemistry , helix (gastropod) , solvent , glutamate receptor , lysine , electromagnetic coil , polymer chemistry , stereochemistry , organic chemistry , amino acid , biochemistry , physics , ecology , receptor , quantum mechanics , snail , biology
In this paper two points are considered: the methods of evaluating the helical content θ and the calculation of the parameters of the transition from experimental data and its interpretation. The parameter Δ H obtained is in good agreement with the calorimetric one and v is found to be independent of temperature and solvent and in agreement with the ordinarily accepted value for poly(γ‐benzyl‐ L ‐glutamate). The different methods of estimating θ are discussed for both polypeptides.