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. 1980 Feb;29(2):247–256. doi: 10.1016/S0006-3495(80)85129-0

Bathoproducts of rhodopsin, isorhodopsin I, and isorhodopsin II.

B Mao, T G Ebrey, R Crouch
PMCID: PMC1328694  PMID: 7260250

Abstract

Bathorhodopsins were prepared by partially (10--15%) photoconverting bovine rhodopsin (11-cis chromophore) or isorhodopsin I (9-cis chromophore) at 77 degrees K; care was taken to avoid establishing photostationary states. The absorption spectra calculated for the bathorhodopsins derived from the two parent pigments are identical in their lambda max 'S, bandwidths, and extinction coefficients. This result provides further support for the hypothesis that bathorhodopsin is a common intermediate between an 11-cis pigment (rhodopsin) and a 9-cis one (isorhodopsin I) and thus probably has an all-trans chromophore. This in turn is strong evidence for the cis-trans isomerization model of the primary event in vision. The spectrum of the bathoproduct of isorhodopsin II (9,13-dicis chromophore) is different from the other pigments' bathoproducts.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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