2dd4

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[[Image:2dd4.jpg|left|200px]]
[[Image:2dd4.jpg|left|200px]]
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{{Structure
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<!--
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|PDB= 2dd4 |SIZE=350|CAPTION= <scene name='initialview01'>2dd4</scene>, resolution 2.06&Aring;
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The line below this paragraph, containing "STRUCTURE_2dd4", 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=FRU:FRUCTOSE'>FRU</scene>, <scene name='pdbligand=TAR:D(-)-TARTARIC+ACID'>TAR</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/Thiocyanate_hydrolase Thiocyanate hydrolase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.5.5.8 3.5.5.8] </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_2dd4| PDB=2dd4 | SCENE= }}
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|RELATEDENTRY=[[2dd5|2DD5]]
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|RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2dd4 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2dd4 OCA], [http://www.ebi.ac.uk/pdbsum/2dd4 PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=2dd4 RCSB]</span>
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}}
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'''Thiocyanate hydrolase (SCNase) from Thiobacillus thioparus recombinant apo-enzyme'''
'''Thiocyanate hydrolase (SCNase) from Thiobacillus thioparus recombinant apo-enzyme'''
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[[Category: Odaka, M.]]
[[Category: Odaka, M.]]
[[Category: Yohda, M.]]
[[Category: Yohda, M.]]
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[[Category: carbonyl sulfide]]
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[[Category: Carbonyl sulfide]]
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[[Category: claw setting]]
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[[Category: Claw setting]]
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[[Category: cobalt]]
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[[Category: Cobalt]]
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[[Category: complex]]
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[[Category: Complex]]
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[[Category: enzyme]]
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[[Category: Enzyme]]
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[[Category: hydrolase]]
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[[Category: Hydrolase]]
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[[Category: metalloprotein]]
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[[Category: Metalloprotein]]
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[[Category: model complex]]
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[[Category: Model complex]]
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[[Category: nitrile hydratase]]
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[[Category: Nitrile hydratase]]
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[[Category: non-corrin]]
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[[Category: Non-corrin]]
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[[Category: protein]]
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[[Category: Protein]]
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[[Category: sulfenic acid]]
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[[Category: Sulfenic acid]]
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[[Category: sulfinic acid]]
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[[Category: Sulfinic acid]]
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[[Category: thiocyanate]]
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[[Category: Thiocyanate]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun May 4 00:12:06 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Mar 31 02:33:09 2008''
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Revision as of 21:12, 3 May 2008

Image:2dd4.jpg

Template:STRUCTURE 2dd4

Thiocyanate hydrolase (SCNase) from Thiobacillus thioparus recombinant apo-enzyme


Overview

Thiocyanate hydrolase (SCNase) of Thiobacillus thioparus THI115 is a cobalt(III)-containing enzyme catalyzing the degradation of thiocyanate to carbonyl sulfide and ammonia. We determined the crystal structures of the apo- and native SCNases at a resolution of 2.0 A. SCNases in both forms had a conserved hetero-dodecameric structure, (alphabetagamma)(4). Four alphabetagamma hetero-trimers were structurally equivalent. One alphabetagamma hetero-trimer was composed of the core domain and the betaN domain, which was located at the center of the molecule and linked the hetero-trimers with novel quaternary interfaces. In both the apo- and native SCNases, the core domain was structurally conserved between those of iron and cobalt-types of nitrile hydratase (NHase). Native SCNase possessed the post-translationally modified cysteine ligands, gammaCys131-SO(2)H and gammaCys133-SOH like NHases. However, the low-spin cobalt(III) was found to be in the distorted square-pyramidal geometry, which had not been reported before in any protein. The size as well as the electrostatic properties of the substrate-binding pocket was totally different from NHases with respect to the charge distribution and the substrate accessibility, which rationally explains the differences in the substrate preference between SCNase and NHase.

About this Structure

2DD4 is a Protein complex structure of sequences from Thiobacillus thioparus. Full crystallographic information is available from OCA.

Reference

Structure of thiocyanate hydrolase: a new nitrile hydratase family protein with a novel five-coordinate cobalt(III) center., Arakawa T, Kawano Y, Kataoka S, Katayama Y, Kamiya N, Yohda M, Odaka M, J Mol Biol. 2007 Mar 9;366(5):1497-509. Epub 2006 Dec 8. PMID:17222425 Page seeded by OCA on Sun May 4 00:12:06 2008

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OCA

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