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== | ==hexadecaheme high molecular weight cytochrome Hmc from Desulfovibrio vulgaris Hildenborough== | ||
Sulfate-reducing bacteria contain a variety of multi-heme c-type | <StructureSection load='1gws' size='340' side='right'caption='[[1gws]], [[Resolution|resolution]] 2.40Å' scene=''> | ||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[1gws]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Desulfovibrio_vulgaris_str._Hildenborough Desulfovibrio vulgaris str. Hildenborough]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1GWS OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1GWS FirstGlance]. <br> | |||
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.4Å</td></tr> | |||
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=HEC:HEME+C'>HEC</scene></td></tr> | |||
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1gws FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1gws OCA], [https://pdbe.org/1gws PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1gws RCSB], [https://www.ebi.ac.uk/pdbsum/1gws PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1gws ProSAT]</span></td></tr> | |||
</table> | |||
== Function == | |||
[https://www.uniprot.org/uniprot/HMWC_NITV2 HMWC_NITV2] HMWC (high-molecular-weight cytochrome c), ORF2, ORF3, ORF4, ORF5 and ORF6 in the HMC operon form a transmembrane protein complex that allows electron flow from the periplasmic hydrogenase to the cytoplasmic enzymes that catalyze reduction of sulfates. | |||
== 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/gw/1gws_consurf.spt"</scriptWhenChecked> | |||
<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview03.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/main_output.php?pdb_ID=1gws ConSurf]. | |||
<div style="clear:both"></div> | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
Sulfate-reducing bacteria contain a variety of multi-heme c-type cytochromes. The cytochrome of highest molecular weight (Hmc) contains 16 heme groups and is part of a transmembrane complex involved in the sulfate respiration pathway. We present the 2.42 A resolution crystal structure of the Desulfovibrio vulgaris Hildenborough cytochrome Hmc and a structural model of the complex with its physiological electron transfer partner, cytochrome c(3), obtained by NMR restrained soft-docking calculations. The Hmc is composed of three domains, which exist independently in different sulfate-reducing species, namely cytochrome c(3), cytochrome c(7), and Hcc. The complex involves the last heme at the C-terminal region of the V-shaped Hmc and heme 4 of cytochrome c(3), and represents an example for specific cytochrome-cytochrome interaction. | |||
The crystal structure of the hexadeca-heme cytochrome Hmc and a structural model of its complex with cytochrome c(3).,Czjzek M, ElAntak L, Zamboni V, Morelli X, Dolla A, Guerlesquin F, Bruschi M Structure. 2002 Dec;10(12):1677-86. PMID:12467575<ref>PMID:12467575</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
</div> | |||
<div class="pdbe-citations 1gws" style="background-color:#fffaf0;"></div> | |||
==See Also== | |||
*[[Cytochrome C 3D structures|Cytochrome C 3D structures]] | |||
== References == | |||
<references/> | |||
__TOC__ | |||
</StructureSection> | |||
[[Category: Desulfovibrio vulgaris str. Hildenborough]] | |||
[[Category: Large Structures]] | |||
[[Category: Bruschi M]] | |||
[[Category: Czjzek M]] | |||
[[Category: Haser R]] | |||