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1jqk
From Proteopedia
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| - | [[Image:1jqk.gif|left|200px]] | + | [[Image:1jqk.gif|left|200px]] |
| - | + | ||
| - | '''Crystal structure of carbon monoxide dehydrogenase from Rhodospirillum rubrum''' | + | {{Structure |
| + | |PDB= 1jqk |SIZE=350|CAPTION= <scene name='initialview01'>1jqk</scene>, resolution 2.8Å | ||
| + | |SITE= | ||
| + | |LIGAND= <scene name='pdbligand=FE2:FE+(II)+ION'>FE2</scene>, <scene name='pdbligand=SF4:IRON/SULFUR+CLUSTER'>SF4</scene>, <scene name='pdbligand=WCC:FE(3)-NI(1)-S(4)+CLUSTER'>WCC</scene> and <scene name='pdbligand=UNX:UNKNOWN ATOM OR ION'>UNX</scene> | ||
| + | |ACTIVITY= [http://en.wikipedia.org/wiki/Carbon-monoxide_dehydrogenase_(acceptor) Carbon-monoxide dehydrogenase (acceptor)], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.2.99.2 1.2.99.2] | ||
| + | |GENE= | ||
| + | }} | ||
| + | |||
| + | '''Crystal structure of carbon monoxide dehydrogenase from Rhodospirillum rubrum''' | ||
| + | |||
==Overview== | ==Overview== | ||
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==About this Structure== | ==About this Structure== | ||
| - | 1JQK is a [ | + | 1JQK is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Rhodospirillum_rubrum Rhodospirillum rubrum]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1JQK OCA]. |
==Reference== | ==Reference== | ||
| - | Life on carbon monoxide: X-ray structure of Rhodospirillum rubrum Ni-Fe-S carbon monoxide dehydrogenase., Drennan CL, Heo J, Sintchak MD, Schreiter E, Ludden PW, Proc Natl Acad Sci U S A. 2001 Oct 9;98(21):11973-8. Epub 2001 Oct 2. PMID:[http:// | + | Life on carbon monoxide: X-ray structure of Rhodospirillum rubrum Ni-Fe-S carbon monoxide dehydrogenase., Drennan CL, Heo J, Sintchak MD, Schreiter E, Ludden PW, Proc Natl Acad Sci U S A. 2001 Oct 9;98(21):11973-8. Epub 2001 Oct 2. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/11593006 11593006] |
[[Category: Carbon-monoxide dehydrogenase (acceptor)]] | [[Category: Carbon-monoxide dehydrogenase (acceptor)]] | ||
[[Category: Rhodospirillum rubrum]] | [[Category: Rhodospirillum rubrum]] | ||
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[[Category: rossmann fold]] | [[Category: rossmann fold]] | ||
| - | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 12:07:06 2008'' |
Revision as of 10:07, 20 March 2008
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| , resolution 2.8Å | |||||||
|---|---|---|---|---|---|---|---|
| Ligands: | , , and | ||||||
| Activity: | Carbon-monoxide dehydrogenase (acceptor), with EC number 1.2.99.2 | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
Crystal structure of carbon monoxide dehydrogenase from Rhodospirillum rubrum
Overview
A crystal structure of the anaerobic Ni-Fe-S carbon monoxide dehydrogenase (CODH) from Rhodospirillum rubrum has been determined to 2.8-A resolution. The CODH family, for which the R. rubrum enzyme is the prototype, catalyzes the biological oxidation of CO at an unusual Ni-Fe-S cluster called the C-cluster. The Ni-Fe-S C-cluster contains a mononuclear site and a four-metal cubane. Surprisingly, anomalous dispersion data suggest that the mononuclear site contains Fe and not Ni, and the four-metal cubane has the form [NiFe(3)S(4)] and not [Fe(4)S(4)]. The mononuclear site and the four-metal cluster are bridged by means of Cys(531) and one of the sulfides of the cube. CODH is organized as a dimer with a previously unidentified [Fe(4)S(4)] cluster bridging the two subunits. Each monomer is comprised of three domains: a helical domain at the N terminus, an alpha/beta (Rossmann-like) domain in the middle, and an alpha/beta (Rossmann-like) domain at the C terminus. The helical domain contributes ligands to the bridging [Fe(4)S(4)] cluster and another [Fe(4)S(4)] cluster, the B-cluster, which is involved in electron transfer. The two Rossmann domains contribute ligands to the active site C-cluster. This x-ray structure provides insight into the mechanism of biological CO oxidation and has broader significance for the roles of Ni and Fe in biological systems.
About this Structure
1JQK is a Single protein structure of sequence from Rhodospirillum rubrum. Full crystallographic information is available from OCA.
Reference
Life on carbon monoxide: X-ray structure of Rhodospirillum rubrum Ni-Fe-S carbon monoxide dehydrogenase., Drennan CL, Heo J, Sintchak MD, Schreiter E, Ludden PW, Proc Natl Acad Sci U S A. 2001 Oct 9;98(21):11973-8. Epub 2001 Oct 2. PMID:11593006
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