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Structure of the Reaction Center from Rhodopseudomonas sphaeroides R-26: The Cofactors

Allen, J. P. and Feher, G. and Yeates, T. O. and Komiya, H. and Rees, D. C. (1987) Structure of the Reaction Center from Rhodopseudomonas sphaeroides R-26: The Cofactors. Proceedings of the National Academy of Sciences of the United States of America, 84 (16). pp. 5730-5734. ISSN 0027-8424. PMCID PMC298936. doi:10.1073/pnas.84.16.5730.

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The three-dimensional structure of the cofactors of the reaction center of Rhodobacter sphaeroides R-26 has been determined by x-ray diffraction and refined at a resolution of 2.8 Å with an R value of 26%. The main features of the structure are similar to the ones determined for Rhodopseudomonas viridis [Michel, H., Epp, O. & Deisenhofer, J. (1986) EMBO J. 5, 2445-2451]. The cofactors are arranged along two branches, which are approximately related to each other by a 2-fold symmetry axis. The structure is well suited to produce light-induced charge separation across the membrane. Most of the structural features predicted from physical and biochemical measurements are confirmed by the x-ray structure.

Item Type:Article
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URLURL TypeDescription DOIArticle CentralArticle
Rees, D. C.0000-0003-4073-1185
Additional Information:© 1987 National Academy of Sciences. Contributed by G. Feher, May 4, 1987. We thank E. Abresch for the preparation of the RCs, M. Y. Okamura for helpful discussions, R. M. Sweet for assistance in the data collection at Brookhaven, and J. Deisenhofer for the FRODO dictionary. This work was supported by grants from the National Institutes of Health (AM36053, GM13191, GM31299, and GM07185), the National Science Foundation (DMB85-18922), a Presidential Young Investigator Award, and the Chicago Community Trust/Searle Scholars Program. The crystallographic station at the Brookhaven National Laboratory was supported by the Department of Energy. The publication costs of this article were defrayed in part by page charge payment. This article must therefore be hereby marked "advertisement" in accordance with 18 U .S.C. §1734 solely to indicate this fact.
Funding AgencyGrant Number
Searle Scholars ProgramUNSPECIFIED
Chicago Community TrustUNSPECIFIED
Department of Energy (DOE)UNSPECIFIED
Subject Keywords:bacterial photosynthesis; membrane protein structure; x-ray diffraction; membrane protein
Issue or Number:16
PubMed Central ID:PMC298936
Record Number:CaltechAUTHORS:20150209-104057384
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Official Citation:J P Allen, G Feher, T O Yeates, H Komiya, and D C Rees Structure of the reaction center from Rhodobacter sphaeroides R-26: the cofactors PNAS 1987 84 (16) 5730-5734
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:54549
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Deposited On:09 Feb 2015 21:55
Last Modified:10 Nov 2021 20:35

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