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Article

Light-stable rhodopsin. II. An opsin mutant (TRP-265----Phe) and a retinal analog with a nonisomerizable 11-cis configuration form a photostable chromophore.

The Journal of biological chemistry - 5 Apr 1992

Ridge K D, Bhattacharya S, Nakayama T A, Khorana H G

Abstract excerpt

In order to prepare a completely light-stable rhodopsin, we have synthesized an analog, II, of 11-cis retinal in which isomerization at the C11-C12 cis-double bond is blocked by formation of a cyclohexene ring from the C10 to C13-methyl. We used this analog to generate a rhodopsin-like pigment from opsin expressed in COS-1 cells and opsin from rod outer segments (Bhattacharya, S., Ridge, K.D., Knox, B.E., and...

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PMID: 1532391

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