1nq6

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[[Image:1nq6.jpg|left|200px]]
[[Image:1nq6.jpg|left|200px]]
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{{Structure
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<!--
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|PDB= 1nq6 |SIZE=350|CAPTION= <scene name='initialview01'>1nq6</scene>, resolution 1.78&Aring;
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The line below this paragraph, containing "STRUCTURE_1nq6", 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=MG:MAGNESIUM+ION'>MG</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/Endo-1,4-beta-xylanase Endo-1,4-beta-xylanase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.2.1.8 3.2.1.8] </span>
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or leave the SCENE parameter empty for the default display.
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|GENE= xysA ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=1944 Streptomyces halstedii])
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|DOMAIN=
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{{STRUCTURE_1nq6| PDB=1nq6 | 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=1nq6 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1nq6 OCA], [http://www.ebi.ac.uk/pdbsum/1nq6 PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=1nq6 RCSB]</span>
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'''Crystal Structure of the catalytic domain of xylanase A from Streptomyces halstedii JM8'''
'''Crystal Structure of the catalytic domain of xylanase A from Streptomyces halstedii JM8'''
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[[Category: Santamaria, R I.]]
[[Category: Santamaria, R I.]]
[[Category: Vega, M C.]]
[[Category: Vega, M C.]]
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[[Category: glycoside hydrolase family 10]]
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[[Category: Glycoside hydrolase family 10]]
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[[Category: xylan degradation,]]
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[[Category: Xylan degradation]]
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[[Category: xylanase]]
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[[Category: Xylanase]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 02:50:59 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Mar 30 22:33:57 2008''
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Revision as of 23:51, 2 May 2008

Template:STRUCTURE 1nq6

Crystal Structure of the catalytic domain of xylanase A from Streptomyces halstedii JM8


Overview

Xylanases hydrolyze the beta-1,4-linked xylose backbone of xylans. They are of increasing interest in the paper and food industries for their pre-bleaching and bio-pulping applications. Such industries demand new xylanases to cover a wider range of cleavage specificity, activity and stability. The catalytic domain of xylanase Xys1 from Streptomyces halstedii JM8 was expressed, purified and crystallized and native data were collected to 1.78 A resolution with an R(merge) of 4.4%. The crystals belong to space group P2(1)2(1)2(1), with unit-cell parameters a = 34.05, b = 79.60, c = 87.80 A. The structure was solved by the molecular-replacement method using the structure of the homologue Xyl10A from Streptomyces lividans. In a similar manner to other members of its family, Xys1 folds to form a standard (beta/alpha)(8) barrel with the two catalytic functions, the acid/base and the nucleophile, at its C-terminal side. The overall structure is described and compared with those of related xylanases.

About this Structure

1NQ6 is a Single protein structure of sequence from Streptomyces halstedii. Full crystallographic information is available from OCA.

Reference

Structure of xylanase Xys1delta from Streptomyces halstedii., Canals A, Vega MC, Gomis-Ruth FX, Diaz M, Santamaria R RI, Coll M, Acta Crystallogr D Biol Crystallogr. 2003 Aug;59(Pt 8):1447-53. Epub 2003, Jul 23. PMID:12876348 Page seeded by OCA on Sat May 3 02:50:59 2008

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