2dfb

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[[Image:2dfb.gif|left|200px]]
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{{STRUCTURE_2dfb| PDB=2dfb | SCENE= }}
{{STRUCTURE_2dfb| PDB=2dfb | SCENE= }}
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'''Xylanase II from Tricoderma reesei at 100K'''
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===Xylanase II from Tricoderma reesei at 100K===
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==Overview==
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An orthorhombic crystal of xylanase II from Trichoderma reesei was grown in the presence of sodium iodide. Crystal structures at atomic resolution were determined at 100 and 293 K. Protein molecules were aligned along a crystallographic twofold screw axis, forming a helically extended polymer-like chain mediated by an iodide ion. The iodide ion connected main-chain peptide groups between two adjacent molecules by an N-H...I-...H-N hydrogen-bond bridge, thus contributing to regulation of the molecular arrangement and suppression of the rigid-body motion in the crystal with high diffraction quality. The structure at 293 K showed considerable thermal motion in the loop regions connecting the beta-strands that form the active-site cleft. TLS model analysis of the thermal motion and a comparison between this structure and that at 100 K suggest that the fluctuation of these loop regions is attributable to the hinge-like movement of the beta-strands.
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(as it appears on PubMed at http://www.pubmed.gov), where 16790934 is the PubMed ID number.
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{{ABSTRACT_PUBMED_16790934}}
==About this Structure==
==About this Structure==
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[[Category: Harata, K.]]
[[Category: Harata, K.]]
[[Category: Bent beta sheet]]
[[Category: Bent beta sheet]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun May 4 00:18:45 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Tue Jul 29 00:45:19 2008''

Revision as of 21:45, 28 July 2008

Image:2dfb.png

Template:STRUCTURE 2dfb

Xylanase II from Tricoderma reesei at 100K

Template:ABSTRACT PUBMED 16790934

About this Structure

2DFB is a Single protein structure of sequence from Hypocrea jecorina. Full crystallographic information is available from OCA.

Reference

Structure of an orthorhombic form of xylanase II from Trichoderma reesei and analysis of thermal displacement., Watanabe N, Akiba T, Kanai R, Harata K, Acta Crystallogr D Biol Crystallogr. 2006 Jul;62(Pt 7):784-92. Epub 2006, Jun 20. PMID:16790934

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