3git: Difference between revisions
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==Crystal structure of a truncated acetyl-CoA synthase== | |||
=== | <StructureSection load='3git' size='340' side='right' caption='[[3git]], [[Resolution|resolution]] 3.00Å' scene=''> | ||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[3git]] is a 6 chain structure with sequence from [http://en.wikipedia.org/wiki/Moorella_thermoacetica Moorella thermoacetica]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3GIT OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3GIT FirstGlance]. <br> | |||
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=H2S:HYDROSULFURIC+ACID'>H2S</scene>, <scene name='pdbligand=SF4:IRON/SULFUR+CLUSTER'>SF4</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr> | |||
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1oao|1oao]]</td></tr> | |||
<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">acsB2 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=1525 Moorella thermoacetica])</td></tr> | |||
<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/CO-methylating_acetyl-CoA_synthase CO-methylating acetyl-CoA synthase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.3.1.169 2.3.1.169] </span></td></tr> | |||
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3git FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3git OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3git RCSB], [http://www.ebi.ac.uk/pdbsum/3git 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/gi/3git_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 == | |||
Ni-dependent acetyl-CoA synthase (ACS) and CO dehydrogenase (CODH) constitute the central enzyme complex of the Wood-Ljungdahl pathway of acetyl-CoA formation. The crystal structure of a recombinant bacterial ACS lacking the N-terminal domain that interacts with CODH shows a large reorganization of the remaining two globular domains, producing a narrow cleft of suitable size, shape, and nature to bind CoA. Sequence comparisons with homologous archaeal enzymes that naturally lack the N-terminal domain show that many amino acids lining this cleft are conserved. Besides the typical [4Fe-4S] center, the A-cluster contains only one proximal metal ion that, according to anomalous scattering data, is most likely Cu or Zn. Incorporation of a functional Ni(2)Fe(4)S(4) A-cluster would require only minor structural rearrangements. Using available structures, a plausible model of the interaction between CODH and the smaller ACS in archaeal multienzyme complexes is presented, along with a discussion of evolutionary relationships of the archaeal and bacterial enzymes. | |||
Novel domain arrangement in the crystal structure of a truncated acetyl-CoA synthase from Moorella thermoacetica.,Volbeda A, Darnault C, Tan X, Lindahl PA, Fontecilla-Camps JC Biochemistry. 2009 Aug 25;48(33):7916-26. PMID:19650626<ref>PMID:19650626</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
</div> | |||
==See Also== | ==See Also== | ||
*[[Acetyl-CoA synthase|Acetyl-CoA synthase]] | *[[Acetyl-CoA synthase|Acetyl-CoA synthase]] | ||
*[[Carbon monoxide dehydrogenase|Carbon monoxide dehydrogenase]] | *[[Carbon monoxide dehydrogenase|Carbon monoxide dehydrogenase]] | ||
== References == | |||
== | <references/> | ||
< | __TOC__ | ||
</StructureSection> | |||
[[Category: CO-methylating acetyl-CoA synthase]] | [[Category: CO-methylating acetyl-CoA synthase]] | ||
[[Category: Moorella thermoacetica]] | [[Category: Moorella thermoacetica]] | ||
[[Category: Darnault, C | [[Category: Darnault, C]] | ||
[[Category: Fontecilla-Camps, J C | [[Category: Fontecilla-Camps, J C]] | ||
[[Category: Volbeda, A | [[Category: Volbeda, A]] | ||
[[Category: Acetyltransferase]] | [[Category: Acetyltransferase]] | ||
[[Category: Carbon dioxide fixation]] | [[Category: Carbon dioxide fixation]] | ||
