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1dxj

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[[Image:1dxj.gif|left|200px]]
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{{STRUCTURE_1dxj| PDB=1dxj | SCENE= }}
{{STRUCTURE_1dxj| PDB=1dxj | SCENE= }}
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'''STRUCTURE OF THE CHITINASE FROM JACK BEAN'''
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===STRUCTURE OF THE CHITINASE FROM JACK BEAN===
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==Overview==
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The structure of jack bean chitinase was solved at 1.8 A resolution by molecular replacement. It is an alpha-helical protein with three disulfide bridges. The active site is related in structure to animal and viral lysozymes. However, unlike in lysozyme, the architecture of the active site suggests a single-step cleavage. According to this mechanism, Glu68 is the proton donor and Glu90 assists in the reaction by moving towards the substrate and recruiting a water molecule that acts as the nucleophile. In this model, a water molecule was found in contact with Glu90 O(epsilon1) and Thr119 O(gamma) at a distance of 3.0 and 2.8 A, respectively. The model is in accordance with the observed inversion mechanism.
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(as it appears on PubMed at http://www.pubmed.gov), where 10957628 is the PubMed ID number.
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{{ABSTRACT_PUBMED_10957628}}
==About this Structure==
==About this Structure==
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[[Category: Family 19 glycosidase]]
[[Category: Family 19 glycosidase]]
[[Category: Hydrolase]]
[[Category: Hydrolase]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May 2 14:23:55 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Jun 30 23:46:04 2008''

Revision as of 20:46, 30 June 2008

Image:1dxj.png

Template:STRUCTURE 1dxj

STRUCTURE OF THE CHITINASE FROM JACK BEAN

Template:ABSTRACT PUBMED 10957628

About this Structure

1DXJ is a Single protein structure of sequence from Canavalia ensiformis. Full crystallographic information is available from OCA.

Reference

Structure of jack bean chitinase., Hahn M, Hennig M, Schlesier B, Hohne W, Acta Crystallogr D Biol Crystallogr. 2000 Sep;56(Pt 9):1096-9. PMID:10957628

Page seeded by OCA on Mon Jun 30 23:46:04 2008

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