2bog

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[[Image:2bog.gif|left|200px]]
[[Image:2bog.gif|left|200px]]
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{{Structure
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<!--
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|PDB= 2bog |SIZE=350|CAPTION= <scene name='initialview01'>2bog</scene>, resolution 1.04&Aring;
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The line below this paragraph, containing "STRUCTURE_2bog", creates the "Structure Box" on the page.
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|SITE= <scene name='pdbsite=AC1:Bgc+Binding+Site+For+Chain+X'>AC1</scene>
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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=BGC:BETA-D-GLUCOSE'>BGC</scene>, <scene name='pdbligand=MGL:O1-METHYL-GLUCOSE'>MGL</scene>, <scene name='pdbligand=SGC:4-DEOXY-4-THIO-BETA-D-GLUCOPYRANOSE'>SGC</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/Cellulase Cellulase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.2.1.4 3.2.1.4] </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_2bog| PDB=2bog | 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=2bog FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2bog OCA], [http://www.ebi.ac.uk/pdbsum/2bog PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=2bog RCSB]</span>
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}}
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'''CATALYTIC DOMAIN OF ENDO-1,4-GLUCANASE CEL6A MUTANT Y73S FROM THERMOBIFIDA FUSCA IN COMPLEX WITH METHYL CELLOBIOSYL-4-THIO-BETA-CELLOBIOSIDE'''
'''CATALYTIC DOMAIN OF ENDO-1,4-GLUCANASE CEL6A MUTANT Y73S FROM THERMOBIFIDA FUSCA IN COMPLEX WITH METHYL CELLOBIOSYL-4-THIO-BETA-CELLOBIOSIDE'''
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[[Category: Roos, A.]]
[[Category: Roos, A.]]
[[Category: Wilson, D B.]]
[[Category: Wilson, D B.]]
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[[Category: endoglucanase]]
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[[Category: Endoglucanase]]
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[[Category: glycoside hydrolase family 6]]
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[[Category: Glycoside hydrolase family 6]]
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[[Category: methyl cellobiosyl-4-thio-beta-cellobioside]]
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[[Category: Methyl cellobiosyl-4-thio-beta-cellobioside]]
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[[Category: thermobifida fusca]]
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[[Category: Thermobifida fusca]]
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[[Category: tim a/b fold]]
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[[Category: Tim a/b fold]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 20:34:25 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Mar 31 02:09:22 2008''
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Revision as of 17:34, 3 May 2008

Template:STRUCTURE 2bog

CATALYTIC DOMAIN OF ENDO-1,4-GLUCANASE CEL6A MUTANT Y73S FROM THERMOBIFIDA FUSCA IN COMPLEX WITH METHYL CELLOBIOSYL-4-THIO-BETA-CELLOBIOSIDE


Overview

Endoglucanase Cel6A from Thermobifida fusca hydrolyzes the beta-1,4 linkages in cellulose at accessible points along the polymer. The structure of the catalytic domain of Cel6A from T. fusca in complex with a nonhydrolysable substrate analogue that acts as an inhibitor, methylcellobiosyl-4-thio-beta-cellobioside (Glc(2)-S-Glc(2)), has been determined to 1.5 A resolution. The glycosyl unit in subsite -1 was sterically hindered by Tyr73 and forced into a distorted (2)S(o) conformation. In the enzyme where Tyr73 was mutated to a serine residue, the hindrance was removed and the glycosyl unit in subsite -1 had a relaxed (4)C(1) chair conformation. The relaxed conformation was seen in two complex structures of the mutated enzyme, with cellotetrose (Glc(4)) at 1.64 A and Glc(2)-S-Glc(2) at 1.04 A resolution.

About this Structure

2BOG is a Single protein structure of sequence from Thermobifida fusca. Full crystallographic information is available from OCA.

Reference

Crystal structure of Thermobifida fusca endoglucanase Cel6A in complex with substrate and inhibitor: the role of tyrosine Y73 in substrate ring distortion., Larsson AM, Bergfors T, Dultz E, Irwin DC, Roos A, Driguez H, Wilson DB, Jones TA, Biochemistry. 2005 Oct 4;44(39):12915-22. PMID:16185060 Page seeded by OCA on Sat May 3 20:34:25 2008

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