1gok

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{{STRUCTURE_1gok| PDB=1gok | SCENE= }}
{{STRUCTURE_1gok| PDB=1gok | SCENE= }}
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'''THERMOSTABLE XYLANASE I FROM THERMOASCUS AURANTIACUS-CRYSTAL FORM II'''
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===THERMOSTABLE XYLANASE I FROM THERMOASCUS AURANTIACUS-CRYSTAL FORM II===
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==Overview==
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The substrate specificity of Thermoascus aurantiacus xylanase 10A (TAX) has been investigated both biochemically and structurally. High resolution crystallographic analyses at 291 K and 100 K of TAX complexes with xylobiose show that the ligand is in its alpha anomeric conformation and provide a rationale for specificity on p-nitrophenyl glycosides at the -1 and -2 subsites. Trp 275, which is disordered in uncomplexed structures, is stabilised by its interaction with xylobiose. Two structural subsets in family 10 are identified, which differ by the presence or absence of a short helical stretch in the eighth betaalpha-loop of the TIM barrel, the loop bearing Trp 275. This structural difference is discussed in the context of Trp 275 mobility and xylanase function.
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(as it appears on PubMed at http://www.pubmed.gov), where 11741607 is the PubMed ID number.
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{{ABSTRACT_PUBMED_11741607}}
==About this Structure==
==About this Structure==
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[[Category: Plant cell wall degradation]]
[[Category: Plant cell wall degradation]]
[[Category: Xylanase]]
[[Category: Xylanase]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May 2 17:49:33 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Tue Jul 1 05:36:35 2008''

Revision as of 02:36, 1 July 2008

Image:1gok.png

Template:STRUCTURE 1gok

THERMOSTABLE XYLANASE I FROM THERMOASCUS AURANTIACUS-CRYSTAL FORM II

Template:ABSTRACT PUBMED 11741607

About this Structure

1GOK is a Single protein structure of sequence from Thermoascus aurantiacus. This structure supersedes the now removed PDB entry 1tax. Full crystallographic information is available from OCA.

Reference

Substrate specificity and subsite mobility in T. aurantiacus xylanase 10A., Lo Leggio L, Kalogiannis S, Eckert K, Teixeira SC, Bhat MK, Andrei C, Pickersgill RW, Larsen S, FEBS Lett. 2001 Dec 7;509(2):303-8. PMID:11741607

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