1rm6

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[[Image:1rm6.gif|left|200px]]
[[Image:1rm6.gif|left|200px]]
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{{Structure
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|PDB= 1rm6 |SIZE=350|CAPTION= <scene name='initialview01'>1rm6</scene>, resolution 1.60&Aring;
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The line below this paragraph, containing "STRUCTURE_1rm6", creates the "Structure Box" on the page.
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|SITE=
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|LIGAND= <scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene>, <scene name='pdbligand=EPE:4-(2-HYDROXYETHYL)-1-PIPERAZINE+ETHANESULFONIC+ACID'>EPE</scene>, <scene name='pdbligand=FAD:FLAVIN-ADENINE+DINUCLEOTIDE'>FAD</scene>, <scene name='pdbligand=FES:FE2/S2+(INORGANIC)+CLUSTER'>FES</scene>, <scene name='pdbligand=K:POTASSIUM+ION'>K</scene>, <scene name='pdbligand=NA:SODIUM+ION'>NA</scene>, <scene name='pdbligand=PCD:(MOLYBDOPTERIN-CYTOSINE+DINUCLEOTIDE-S,S)-DIOXO-AQUA-MOLYBDENUM(V)'>PCD</scene>, <scene name='pdbligand=SF4:IRON/SULFUR+CLUSTER'>SF4</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</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/4-hydroxybenzoyl-CoA_reductase 4-hydroxybenzoyl-CoA reductase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.3.99.20 1.3.99.20] </span>
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{{STRUCTURE_1rm6| PDB=1rm6 | SCENE= }}
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|RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1rm6 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1rm6 OCA], [http://www.ebi.ac.uk/pdbsum/1rm6 PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=1rm6 RCSB]</span>
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'''Structure of 4-hydroxybenzoyl-CoA reductase from Thauera aromatica'''
'''Structure of 4-hydroxybenzoyl-CoA reductase from Thauera aromatica'''
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[[Category: Unciuleac, M.]]
[[Category: Unciuleac, M.]]
[[Category: Warkentin, E.]]
[[Category: Warkentin, E.]]
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[[Category: (a]]
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[[Category: Dimer heterotrimer]]
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[[Category: b]]
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[[Category: Xanthine oxidase family]]
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[[Category: c)2]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 07:39:51 2008''
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[[Category: dimer heterotrimer]]
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[[Category: xanthine oxidase family]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Mar 30 23:30:07 2008''
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Revision as of 04:39, 3 May 2008

Image:1rm6.gif

Template:STRUCTURE 1rm6

Structure of 4-hydroxybenzoyl-CoA reductase from Thauera aromatica


Overview

The Mo-flavo-Fe/S-dependent heterohexameric protein complex 4-hydroxybenzoyl-CoA reductase (4-HBCR, dehydroxylating) is a central enzyme of the anaerobic degradation of phenolic compounds and belongs to the xanthine oxidase (XO) family of molybdenum enzymes. Its X-ray structure was established at 1.6 A resolution. The most pronounced difference between 4-HBCR and other structurally characterized members of the XO family is the insertion of 40 amino acids within the beta subunit, which carries an additional [4Fe-4S] cluster at a distance of 16.5 A to the isoalloxazine ring of FAD. The architecture of 4-HBCR and concomitantly performed electron transfer rate calculations suggest an inverted electron transfer chain from the donor ferredoxin via the [4Fe-4S] cluster to the Mo over a distance of 55 A. The binding site of 4-hydroxybenzoyl-CoA is located in an 18 A long channel lined up by several aromatic side chains around the aromatic moiety, which are proposed to shield and stabilize the postulated radical intermediates during catalysis.

About this Structure

1RM6 is a Protein complex structure of sequences from Thauera aromatica. Full crystallographic information is available from OCA.

Reference

Structure of a xanthine oxidase-related 4-hydroxybenzoyl-CoA reductase with an additional [4Fe-4S] cluster and an inverted electron flow., Unciuleac M, Warkentin E, Page CC, Boll M, Ermler U, Structure. 2004 Dec;12(12):2249-56. PMID:15576037 Page seeded by OCA on Sat May 3 07:39:51 2008

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