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1cxl

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[[Image:1cxl.gif|left|200px]]
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{{STRUCTURE_1cxl| PDB=1cxl | SCENE= }}
{{STRUCTURE_1cxl| PDB=1cxl | SCENE= }}
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'''COMPLEX BETWEEN A COVALENT INTERMEDIATE AND BACILLUS CIRCULANS STRAIN 251 CGTASE E257Q'''
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===COMPLEX BETWEEN A COVALENT INTERMEDIATE AND BACILLUS CIRCULANS STRAIN 251 CGTASE E257Q===
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==Overview==
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Cyclodextrin glycosyltransferase (CGTase) is an enzyme of the alpha-amylase family, which uses a double displacement mechanism to process alpha-linked glucose polymers. We have determined two X-ray structures of CGTase complexes, one with an intact substrate at 2.1 A resolution, and the other with a covalently bound reaction intermediate at 1.8 A resolution. These structures give evidence for substrate distortion and the covalent character of the intermediate and for the first time show, in atomic detail, how catalysis in the alpha-amylase family proceeds by the concerted action of all active site residues.
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(as it appears on PubMed at http://www.pubmed.gov), where 10331869 is the PubMed ID number.
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{{ABSTRACT_PUBMED_10331869}}
==About this Structure==
==About this Structure==
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[[Category: Glycosyl hydrolase family 13]]
[[Category: Glycosyl hydrolase family 13]]
[[Category: Intermediate complex]]
[[Category: Intermediate complex]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May 2 13:13:13 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Jun 30 21:43:38 2008''

Revision as of 18:43, 30 June 2008

Image:1cxl.png

Template:STRUCTURE 1cxl

COMPLEX BETWEEN A COVALENT INTERMEDIATE AND BACILLUS CIRCULANS STRAIN 251 CGTASE E257Q

Template:ABSTRACT PUBMED 10331869

About this Structure

1CXL is a Single protein structure of sequence from Bacillus circulans. Full crystallographic information is available from OCA.

Reference

X-ray structures along the reaction pathway of cyclodextrin glycosyltransferase elucidate catalysis in the alpha-amylase family., Uitdehaag JC, Mosi R, Kalk KH, van der Veen BA, Dijkhuizen L, Withers SG, Dijkstra BW, Nat Struct Biol. 1999 May;6(5):432-6. PMID:10331869

Page seeded by OCA on Mon Jun 30 21:43:38 2008

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