1ree: Difference between revisions

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[[Image:1ree.gif|left|200px]]
{{Seed}}
[[Image:1ree.png|left|200px]]


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{{STRUCTURE_1ree|  PDB=1ree  |  SCENE=  }}  
{{STRUCTURE_1ree|  PDB=1ree  |  SCENE=  }}  


'''ENDO-1,4-BETA-XYLANASE II COMPLEX WITH 3,4-EPOXYBUTYL-BETA-D-XYLOSIDE'''
===ENDO-1,4-BETA-XYLANASE II COMPLEX WITH 3,4-EPOXYBUTYL-BETA-D-XYLOSIDE===




==Overview==
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The three-dimensional structures of endo-1,4-xylanase II (XYNII) from Trichoderma reesei complexed with 4,5-epoxypentyl beta-D-xyloside (X-O-C5),3,4-epoxybutyl beta-D-xyloside (X-O-C4), and 2,3-epoxypropyl beta-D-xyloside (X-O-C3) were determined by X-ray crystallography. High-resolution measurement revealed clear electron densities for each ligand. Both X-O-C5 and X-O-C3 were found to form a covalent bond with the putative nucleophile Glu86. Unexpectedly, X-O-C4 was found to bind to the putative acid/base catalyst Glu177. In all three complexes, clear conformational changes were found in XYNII compared to the native structure. These changes were largest in the X-O-C3 complex structure.
The line below this paragraph, {{ABSTRACT_PUBMED_8755744}}, adds the Publication Abstract to the page
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{{ABSTRACT_PUBMED_8755744}}


==About this Structure==
==About this Structure==
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[[Category: Xylan degradation]]
[[Category: Xylan degradation]]
[[Category: Xylanase]]
[[Category: Xylanase]]
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May  3 07:23:44 2008''
 
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Jul 28 09:03:28 2008''
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