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. 1977 Feb;17(2):185–191. doi: 10.1016/S0006-3495(77)85636-1

The quantum efficiency for the photochemical conversion of the purple membrane protein.

B Becher, T G Ebrey
PMCID: PMC1473469  PMID: 836936

Abstract

The quantum efficiency for the formation of M(412), an intermediate product in the photoconversion of the purple membrane protein of Halobacterium halobium, was determined to be 0.30 +/- 0.03 at -40 degrees C. This photochemical reaction was photoreversible to the original pigment and the ratio of the quantum efficiencies gamma PM(568 leads to M(412)/gamma M(412) leads to PM(568) was 0.39 +/- 0.02. No change was seen in either value when exciton interaction between chromophores was eliminated. The sum of gamma PM(568) leads to M(412) plus gamma M(412) leads to PM(568) was 1.07 +/- 0.10, approximately 1, suggesting that the pigment and its primary photoproduct share a common excited state.

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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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