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1esc

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[[Image:1esc.gif|left|200px]]
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{{Seed}}
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[[Image:1esc.png|left|200px]]
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{{STRUCTURE_1esc| PDB=1esc | SCENE= }}
{{STRUCTURE_1esc| PDB=1esc | SCENE= }}
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'''THE MOLECULAR MECHANISM OF ENANTIORECOGNITION BY ESTERASES'''
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===THE MOLECULAR MECHANISM OF ENANTIORECOGNITION BY ESTERASES===
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==Overview==
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The crystal structure of a novel esterase from Streptomyces scabies, a causal agent of the potato scab disease, was solved at 2.1 A resolution. The tertiary fold of the enzyme is substantially different from that of the alpha/beta hydrolase family and unique among all known hydrolases. The active site contains a dyad of Ser 14 and His 283, closely resembling two of the three components of typical Ser-His-Asp(Glu) triads from other serine hydrolases. Proper orientation of the active site imidazol is maintained by a hydrogen bond between the N delta-H group and a main chain oxygen. Thus, the enzyme constitutes the first known natural variation of the chymotrypsin-like triad in which a carboxylic acid is replaced by a neutral hydrogen-bond acceptor.
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The line below this paragraph, {{ABSTRACT_PUBMED_7773790}}, adds the Publication Abstract to the page
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(as it appears on PubMed at http://www.pubmed.gov), where 7773790 is the PubMed ID number.
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{{ABSTRACT_PUBMED_7773790}}
==About this Structure==
==About this Structure==
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[[Category: Swenson, L.]]
[[Category: Swenson, L.]]
[[Category: Wei, Y.]]
[[Category: Wei, Y.]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May 2 15:27:53 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Tue Jul 1 01:48:24 2008''

Revision as of 22:48, 30 June 2008

Image:1esc.png

Template:STRUCTURE 1esc

THE MOLECULAR MECHANISM OF ENANTIORECOGNITION BY ESTERASES

Template:ABSTRACT PUBMED 7773790

About this Structure

1ESC is a Single protein structure of sequence from Streptomyces scabiei. Full crystallographic information is available from OCA.

Reference

A novel variant of the catalytic triad in the Streptomyces scabies esterase., Wei Y, Schottel JL, Derewenda U, Swenson L, Patkar S, Derewenda ZS, Nat Struct Biol. 1995 Mar;2(3):218-23. PMID:7773790

Page seeded by OCA on Tue Jul 1 01:48:24 2008

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