1gdv
From Proteopedia
CRYSTAL STRUCTURE OF CYTOCHROME C6 FROM RED ALGA PORPHYRA YEZOENSIS AT 1.57 A RESOLUTION
Structural highlights
FunctionCYC6_NEOYE Functions as an electron carrier between membrane-bound cytochrome b6-f and photosystem I in oxygenic photosynthesis. Evolutionary Conservation Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf. Publication Abstract from PubMedThe crystal structure of cytochrome c(6) from the red alga Porphyra yezoensis has been determined at 1.57 A resolution. The crystal is tetragonal and belongs to space group P4(3)2(1)2, with unit-cell parameters a = b = 49.26 (3), c = 83.45 (4) A and one molecule per asymmetric unit. The structure was solved by the molecular-replacement method and refined with X-PLOR to an R factor of 19.9% and a free R factor of 25.4%. The overall structure of cytochrome c(6) follows the topology of class I c-type cytochromes in which the heme prosthetic group covalently binds to Cys14 and Cys17, and the iron has an octahedral coordination with His18 and Met58 as the axial ligands. The sequence and the structure of the eukaryotic red algal cytochrome c(6) are very similar to those of a prokaryotic cyanobacterial cytochrome c(6) rather than those of eukaryotic green algal c(6) cytochromes. Structure of cytochrome c6 from the red alga Porphyra yezoensis at 1. 57 A resolution.,Yamada S, Park SY, Shimizu H, Koshizuka Y, Kadokura K, Satoh T, Suruga K, Ogawa M, Isogai Y, Nishio T, Shiro Y, Oku T Acta Crystallogr D Biol Crystallogr. 2000 Dec;56(Pt 12):1577-82. PMID:11092924[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. References
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