1gdv
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(New page: 200px<br /><applet load="1gdv" size="450" color="white" frame="true" align="right" spinBox="true" caption="1gdv, resolution 1.57Å" /> '''CRYSTAL STRUCTURE OF...)
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Revision as of 13:51, 20 November 2007
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CRYSTAL STRUCTURE OF CYTOCHROME C6 FROM RED ALGA PORPHYRA YEZOENSIS AT 1.57 A RESOLUTION
Overview
The 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.
About this Structure
1GDV is a Single protein structure of sequence from Porphyra yezoensis with HEM as ligand. Full crystallographic information is available from OCA.
Reference
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
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