Opsin Structure Probed by Raman Spectroscopy of Photoreceptor Membranes
Authors:
- 19 March 1976
- journal article
- research article
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 191 (4232) , 1176-1178
Abstract
The first nonresonance Raman spectra of photoreceptor membranes are presented. Information about the membrane protein, opsin, and the membrane phospholipids can be deduced. Opsin appears to contain α-helical structure but little β structure. The tyrosine residues are predominantly hydrogen bonded, and disulfide bonds, if they are present, are not in the normal gauche-gauche configuration.Keywords
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