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Circular dichroism spectrum of poly-L-proline

✍ Scribed by F. A. Bovey; F. P. Hood


Publisher
Wiley (John Wiley & Sons)
Year
1967
Tongue
English
Weight
132 KB
Volume
5
Category
Article
ISSN
0006-3525

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πŸ“œ SIMILAR VOLUMES


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We report the rircular dirhroism (0) spectrum of poly-L-acetoxyproline in trifluoroethanol, a solvent in which the form I to form I1 conformational isomerization orcurs slowly enough to permit observation of the spectral changes. A romparison is made to poly-L-proline. As judged by the similarity of

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## Abstract Circular dichroism spectra for acid‐soluble calfskin collagen, gelatin, and poly(proline) II in solution have been extended into the vacuum ultraviolet region. The extended spectrum of gelatin reveals that the circular dichroism of this unordered polymer is more closely related to the s

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## Abstract The positive circular dichroism band observed near 228 nm with poly(L‐proline) responds in a similar fashion to HCl and CaCl~2~. The spectra in the HCl solutions are compatible with a simple binding equation and a p__K__ near βˆ’2 for the dissociation of a proton from a protonated peptide

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The maximum at 220 nm in the circular dichroism spectrum of native collagen solution changed to a negative value after heat denaturation or collagenase hydrolysis. The enzyme induced rate of C1) change a t 220 nm was shown to be first order in collagen concentration. The specific rate constant k is