## Abstract The conformation and conformational transitions of poly(His‐Ala‐Glu) have been investigated by ir, nmr, and CD measurements. The results obtained—as well as the results of our previous investigations by potentiometric titration and hydrodynamic techniques [Goren et al., __Biopolymers__
Conformational transition of poly(L-glutamic acid) in aqueous solution
✍ Scribed by G. Barone; V. Crescenzi; F. Quadrifoglio
- Publisher
- Wiley (John Wiley & Sons)
- Year
- 1966
- Tongue
- English
- Weight
- 522 KB
- Volume
- 4
- Category
- Article
- ISSN
- 0006-3525
No coin nor oath required. For personal study only.
✦ Synopsis
Chimica delle Macromolecole (CNR) Sex. ZZZ, Ztaly
Synopsis
Further direct evidences are given that a clear correlation exists between potentiometric and spectroscopic measurements in monitoring the poly( bglutamic acid) helix + coil transition. Specific Li + ion poly(r,-glutamic acid) interactions have been observed, suggesting that Li+ ions may exert a distinct destabilizing action on the helical conformation of the polyelectrolyte.
📜 SIMILAR VOLUMES
## Abstract 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
The interaction between ionizable carboxyl groups and the conformation of poly-(glutamic acid) (PGA) in aqueous solution were investigated by the mechanical method. The dynamic rigidity of the PGA solution has a maximum value at the pH corresponding to about 50% neutralization point. This may be due
To investigate the flexibility or motility of the secondary structure of poly-Lglutamic acid, a simple model molecule of proteins, the kinetics of the tritium-hydrogen exchange of this polymer in aqueous solutions waa followed at various pH values by use of a freezedrying technique and a liquid scin
## Abstract The dielectric features of poly(L‐glutamic acid) are studied by the Fourier synthesized pseudorandom noise method in a time domain combined with a four‐electrode cell. Polymer concentration dependence, the effect of the solvent viscosity, salt effects, and pH dependence are studied conc