Helix–coil transition kinetics in aqueous poly(α, L ‐glutamic acid) | Zendy

Cummings Arthur L. | Zendy; Eyring Edward M. | Zendy

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Helix–coil transition kinetics in aqueous poly(α, L ‐glutamic acid)

Author(s) -

Cummings Arthur L.,

Eyring Edward M.

Publication year - 1975

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.1975.360141010

Subject(s) - chemistry , helix (gastropod) , aqueous solution , relaxation (psychology) , kinetics , reaction rate constant , electromagnetic coil , glutamic acid , crystallography , nuclear magnetic resonance , amino acid , biochemistry , physics , psychology , ecology , social psychology , quantum mechanics , snail , biology

A polarimetric electric‐field‐jump relaxation apparatus is described and used to determine the relaxation spectrum for the helix–coil transition of poly(α, L ‐glutamic acid) in water at 24°C. A maximum relaxation time of 1.7 μc occurs at the transition midpoint (pH = 5.9) yielding a rate constant for helical growth of 6 × 10 7 sec −1 .

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