1gyo
From Proteopedia
(Difference between revisions)
| Line 1: | Line 1: | ||
| - | [[ | + | ==CRYSTAL STRUCTURE OF THE DI-TETRAHEME CYTOCHROME C3 FROM DESULFOVIBRIO GIGAS AT 1.2 ANG RESOLUTION== |
| + | <StructureSection load='1gyo' size='340' side='right' caption='[[1gyo]], [[Resolution|resolution]] 1.20Å' scene=''> | ||
| + | == Structural highlights == | ||
| + | <table><tr><td colspan='2'>[[1gyo]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Desulfovibrio_gigas Desulfovibrio gigas]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1GYO OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1GYO FirstGlance]. <br> | ||
| + | </td></tr><tr><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=HEC:HEME+C'>HEC</scene><br> | ||
| + | <tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1gyo FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1gyo OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1gyo RCSB], [http://www.ebi.ac.uk/pdbsum/1gyo PDBsum]</span></td></tr> | ||
| + | <table> | ||
| + | == Evolutionary Conservation == | ||
| + | [[Image:Consurf_key_small.gif|200px|right]] | ||
| + | Check<jmol> | ||
| + | <jmolCheckbox> | ||
| + | <scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/gy/1gyo_consurf.spt"</scriptWhenChecked> | ||
| + | <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | ||
| + | <text>to colour the structure by Evolutionary Conservation</text> | ||
| + | </jmolCheckbox> | ||
| + | </jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/chain_selection.php?pdb_ID=2ata ConSurf]. | ||
| + | <div style="clear:both"></div> | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
| + | The structure of dimeric cytochrome c(3) from the sulfate-reducing bacterium Desulfovibrio gigas, diDg, obtained by ab initio methods was further refined to 1.2 A resolution, giving final reliability factors of R(free) = 14.8% and R = 12.4%. This cytochrome is a dimer of tetraheme cytochrome c(3) molecules covalently linked by two solvent-accessible disulfide bridges, a characteristic unique to members of the cytochrome c(3) superfamily. Anisotropic analysis using the semi-rigid TLS method shows different behaviour for analogous loops in each monomer arising from their different packing environments. A detailed sequence and structural comparison with all other known cytochrome c(3) domains in single- and multi-domain cytochromes c(3) shows the presence of structurally conserved regions in this family, despite the high variability of the amino-acid sequence. An internal water molecule is conserved in a common structural arrangement in all c(3) tetraheme domains, indicating a probable electron-transfer pathway between hemes I and II. Unique features of diDg are an internal methionine residue close to heme I and to one of the axial ligands of heme III, where all other structures of the cytochrome c(3) superfamily have a phenylalanine, and a rather unusual CXXXCH heme-binding motif only found so far in this cytochrome. | ||
| - | + | Structure of dimeric cytochrome c3 from Desulfovibrio gigas at 1.2 A resolution.,Aragao D, Frazao C, Sieker L, Sheldrick GM, LeGall J, Carrondo MA Acta Crystallogr D Biol Crystallogr. 2003 Apr;59(Pt 4):644-53. Epub 2003, Mar 25. PMID:12657783<ref>PMID:12657783</ref> | |
| - | + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |
| - | + | </div> | |
| - | + | ||
| - | + | ||
| - | + | ||
| - | + | ||
==See Also== | ==See Also== | ||
*[[Cytochrome c|Cytochrome c]] | *[[Cytochrome c|Cytochrome c]] | ||
| - | + | == References == | |
| - | == | + | <references/> |
| - | < | + | __TOC__ |
| + | </StructureSection> | ||
[[Category: Desulfovibrio gigas]] | [[Category: Desulfovibrio gigas]] | ||
[[Category: Aragao, D.]] | [[Category: Aragao, D.]] | ||
Revision as of 08:31, 28 September 2014
CRYSTAL STRUCTURE OF THE DI-TETRAHEME CYTOCHROME C3 FROM DESULFOVIBRIO GIGAS AT 1.2 ANG RESOLUTION
| |||||||||||
