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Nmr studies of poly-γ-benzyl-L-glutamate in trifluoroacetic/deuterochloroform solutions: Temperature dependence

✍ Scribed by E. Brosio; M. Delfini; A. De Paolis; M. Paci; F. Conti

Publisher
Wiley (John Wiley & Sons)
Year
1974
Tongue
English
Weight
245 KB
Volume
13
Category
Article
ISSN
0006-3525

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✦ Synopsis

Abstract

The helix–random‐coil transition process for poly‐γ‐benzyl‐L‐glutamate (PBG) in solvent mixtures trifluoroacetic acid/deuterochloroform (TFA/CDCl~3~) at different temperatures has been studied by nmr. The chemical shift behavior of the α‐CH resonances of the peptide chain and of the TFA carboxylic protons is reported.

📜 SIMILAR VOLUMES

PMR chemical shifts of TFA in poly(γ-ben
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✍ Kang-Jen Liu; S. J. Lignowski 📂 Article 📅 1970 🏛 Wiley (John Wiley & Sons) 🌐 English ⚖ 262 KB 👁 1 views

## Abstract The present communication describes a new way of studying helix–random coil transformations of polypeptide, poly‐(γ‐benzyl L‐glutamate), in benzene–trifluoracetic acid (TFA) and chloroform–TFA systems. The difference between the PMR chemical shift of TFA with and without the polypeptide

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The helix-coil transition of poly(ybenzy1 L-glutamate) was studied by comparing proton magnetic relaxation behavior with optical activity studies. The transition temperatnre as determined by magnetic relaxation was lower than that obtained by optical activity. The relationship of these experiments