1feh

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[[Image:1feh.gif|left|200px]]
[[Image:1feh.gif|left|200px]]
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{{Structure
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<!--
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|PDB= 1feh |SIZE=350|CAPTION= <scene name='initialview01'>1feh</scene>, resolution 1.8&Aring;
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The line below this paragraph, containing "STRUCTURE_1feh", creates the "Structure Box" on the page.
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|SITE=
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You may change the PDB parameter (which sets the PDB file loaded into the applet)
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|LIGAND= <scene name='pdbligand=FES:FE2/S2+(INORGANIC)+CLUSTER'>FES</scene>, <scene name='pdbligand=HC1:2+IRON/2+SULFUR/5+CARBONYL/2+WATER+INORGANIC+CLUSTER'>HC1</scene>, <scene name='pdbligand=SF4:IRON/SULFUR+CLUSTER'>SF4</scene>
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or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
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|ACTIVITY= <span class='plainlinks'>[http://en.wikipedia.org/wiki/Ferredoxin_hydrogenase Ferredoxin hydrogenase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.12.7.2 1.12.7.2] </span>
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or leave the SCENE parameter empty for the default display.
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|GENE=
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-->
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|DOMAIN=
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{{STRUCTURE_1feh| PDB=1feh | SCENE= }}
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|RELATEDENTRY=
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|RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1feh FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1feh OCA], [http://www.ebi.ac.uk/pdbsum/1feh PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=1feh RCSB]</span>
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}}
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'''FE-ONLY HYDROGENASE FROM CLOSTRIDIUM PASTEURIANUM'''
'''FE-ONLY HYDROGENASE FROM CLOSTRIDIUM PASTEURIANUM'''
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[[Category: Peters, J W.]]
[[Category: Peters, J W.]]
[[Category: Seefeldt, L C.]]
[[Category: Seefeldt, L C.]]
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[[Category: oxidoreductase]]
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[[Category: Oxidoreductase]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May 2 16:13:53 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Mar 30 20:21:18 2008''
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Revision as of 13:13, 2 May 2008

Image:1feh.gif

Template:STRUCTURE 1feh

FE-ONLY HYDROGENASE FROM CLOSTRIDIUM PASTEURIANUM


Overview

A three-dimensional structure for the monomeric iron-containing hydrogenase (CpI) from Clostridium pasteurianum was determined to 1.8 angstrom resolution by x-ray crystallography using multiwavelength anomalous dispersion (MAD) phasing. CpI, an enzyme that catalyzes the two-electron reduction of two protons to yield dihydrogen, was found to contain 20 gram atoms of iron per mole of protein, arranged into five distinct [Fe-S] clusters. The probable active-site cluster, previously termed the H-cluster, was found to be an unexpected arrangement of six iron atoms existing as a [4Fe-4S] cubane subcluster covalently bridged by a cysteinate thiol to a [2Fe] subcluster. The iron atoms of the [2Fe] subcluster both exist with an octahedral coordination geometry and are bridged to each other by three non-protein atoms, assigned as two sulfide atoms and one carbonyl or cyanide molecule. This structure provides insights into the mechanism of biological hydrogen activation and has broader implications for [Fe-S] cluster structure and function in biological systems.

About this Structure

1FEH is a Single protein structure of sequence from Clostridium pasteurianum. Full crystallographic information is available from OCA.

Reference

X-ray crystal structure of the Fe-only hydrogenase (CpI) from Clostridium pasteurianum to 1.8 angstrom resolution., Peters JW, Lanzilotta WN, Lemon BJ, Seefeldt LC, Science. 1998 Dec 4;282(5395):1853-8. PMID:9836629 Page seeded by OCA on Fri May 2 16:13:53 2008

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