CIRCULAR DICHROISM OF VISUAL PIGMENTS IN THE VISIBLE AND ULTRAVIOLET SPECTRAL REGIONS
- 1 December 1966
- journal article
- research article
- Published by Proceedings of the National Academy of Sciences in Proceedings of the National Academy of Sciences
- Vol. 56 (6) , 1729-1734
- https://doi.org/10.1073/pnas.56.6.1729
Abstract
Solutions of visual pigments displayed circular dichroism (CD) in association with the main absorption ([alpha]-band) in the visible region and, in rhodopsin as distinct from porphyropsin, also in the 0 -band. These CD-bands vanish upon bleaching. The ultraviolet CD was that of proteins with a predominantly [alpha]-helical conformation, and the CD in this region became reduced upon bleaching. The findings are discussed in comparison with the views of Hubbard and Wald on conformational changes in the visual pigments.This publication has 14 references indexed in Scilit:
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