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The determination of the thermodynamic parameter of the helix-coil transition of polypeptides by means of dipole moment measurements

✍ Scribed by C. Dufour; E. Marchal

Publisher
Wiley (John Wiley & Sons)
Year
1972
Tongue
English
Weight
403 KB
Volume
11
Category
Article
ISSN
0006-3525

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✦ Synopsis

Abstract

The theoretical change of the mean‐square dipole moment of a polypeptide during the helix‐coil transition is compared with the change in helix content. It is shown that, according to the theory, the determination of the helix initiation parameter σ and the enthalpy of helix formation Δ__H__ can be determined. Experimental data on poly‐benzyl‐L‐gluatamate in two different solvent mixtures are given.

📜 SIMILAR VOLUMES

Conformation of polypeptide in the, heli
Conformation of polypeptide in the, helix–coil transition region
✍ T. M. Birshtein 📂 Article 📅 1969 🏛 Wiley (John Wiley & Sons) 🌐 English ⚖ 96 KB 👁 2 views

## Conformation of Polypeptide i n the Helix-Coil Transition Region A recently published work by Go, Saito, and Ochiail presented a calculation of the mean values of the second (R2) and the fourth (R4) powers of the end-to-end distance of the polypeptide chain in the helix-coil transition region.

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Conformation of polypeptides in the helix–coil transition region: Revised calculation for the fourth moment
✍ M. Gō; N. Saitô 📂 Article 📅 1970 🏛 Wiley (John Wiley & Sons) 🌐 English ⚖ 60 KB 👁 1 views

CQMMUNICATIONS TO THE EDITOR ## Conformation of Polypeptides i n the Helix-Coil Transition Region: Revised Calculation f o r the Fourth Moment Recently Birshtein' pointed out errors in our c.alc.ulation2 of the fourth monient (R4 ) We thus made revised calculations for (R4) and the deviation fro

Cooperativity of the helix–random coil t
Cooperativity of the helix–random coil transition determined from hydrodynamic data
✍ Gary Hagnauer; Wilmer G. Miller 📂 Article 📅 1970 🏛 Wiley (John Wiley & Sons) 🌐 English ⚖ 381 KB 👁 1 views

## Abstract The approximations in the equation relating the viscosity of partially helical molecules to the cooperativity of the helix–random coil transition are investigated. Of the several approximations considered, only the neglect of long‐range intramolecular interactions in the random coil lea