2rcr: Difference between revisions

Revision as of 16:39, 4 May 2008

STRUCTURE OF THE MEMBRANE-BOUND PROTEIN PHOTOSYNTHETIC REACTION CENTER FROM RHODOBACTER SPHAEROIDES

OverviewOverview

The structure of the photosynthetic reaction center (RC) from Rhodobacter sphaeroides was determined at 3.1-A resolution by the molecular replacement method, using the Rhodopseudomonas viridis RC as the search structure. Atomic coordinates were refined with the difference Fourier method and restrained least-squares refinement techniques to a current R factor of 22%. The tertiary structure of the RC complex is stabilized by hydrophobic interactions between the L and M chains, by interactions of the pigments with each other and with the L and M chains, by residues from the L and M chains that coordinate to the Fe2+, by salt bridges that are formed between the L and M chains and the H chain, and possibly by electrostatic forces between the ends of helices. The conserved residues at the N-termini of the L and M chains were identified as recognition sites for the H chain.

About this StructureAbout this Structure

2RCR is a Protein complex structure of sequences from Rhodobacter sphaeroides. Full crystallographic information is available from OCA.

ReferenceReference

Structure of the membrane-bound protein photosynthetic reaction center from Rhodobacter sphaeroides., Chang CH, el-Kabbani O, Tiede D, Norris J, Schiffer M, Biochemistry. 1991 Jun 4;30(22):5352-60. PMID:2036404 Page seeded by OCA on Sun May 4 16:39:01 2008

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OCA

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 '''STRUCTURE OF THE MEMBRANE-BOUND PROTEIN PHOTOSYNTHETIC REACTION CENTER FROM RHODOBACTER SPHAEROIDES'''
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 [[Category: Norris, J.]]
 [[Category: Schiffer, M.]]
-[[Category: photosynthetic reaction center]]
+[[Category: Photosynthetic reaction center]]
+''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun May  4 16:39:01 2008''
-''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Mar 31 04:58:53 2008''