2bu9: Difference between revisions

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[[Image:2bu9.gif|left|200px]]
{{Seed}}
[[Image:2bu9.png|left|200px]]


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{{STRUCTURE_2bu9|  PDB=2bu9  |  SCENE=  }}  
{{STRUCTURE_2bu9|  PDB=2bu9  |  SCENE=  }}  


'''ISOPENICILLIN N SYNTHASE COMPLEXED WITH L-AMINOADIPOYL-L-CYSTEINYL-L-HEXAFLUOROVALINE'''
===ISOPENICILLIN N SYNTHASE COMPLEXED WITH L-AMINOADIPOYL-L-CYSTEINYL-L-HEXAFLUOROVALINE===




==Overview==
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Isopenicillin N synthase (IPNS) is a non-haem iron oxidase that catalyses the formation of isopenicillin N from the tripeptide delta-(L-alpha-aminoadipoyl)-L-cysteinyl-D-valine. In this report, we describe the crystal structure of the enzyme with a non-natural L,L,L-tripeptide substrate, delta-(L-alpha-aminoadipoyl)-L-cysteinyl-L-3,3,3,3',3',3'-hexafluorovaline . This structure reveals a strong binding interaction of the tripeptide within the active site and a unique conformation for the non-natural L,L,L-diastereomer. Taken together, these findings provide a possible rationale for the previously observed inhibitory effects of L,L,L-tripeptide substrates on IPNS activity.
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{{ABSTRACT_PUBMED_16143309}}


==About this Structure==
==About this Structure==
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[[Category: Oxygenase]]
[[Category: Oxygenase]]
[[Category: Penicillin biosynthesis]]
[[Category: Penicillin biosynthesis]]
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May  3 20:48:25 2008''
 
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Revision as of 17:20, 27 July 2008

File:2bu9.png

Template:STRUCTURE 2bu9

ISOPENICILLIN N SYNTHASE COMPLEXED WITH L-AMINOADIPOYL-L-CYSTEINYL-L-HEXAFLUOROVALINE

Template:ABSTRACT PUBMED 16143309

About this Structure

2BU9 is a Single protein structure of sequence from Emericella nidulans. Full crystallographic information is available from OCA.

Reference

Unique binding of a non-natural L,L,L-substrate by isopenicillin N synthase., Howard-Jones AR, Rutledge PJ, Clifton IJ, Adlington RM, Baldwin JE, Biochem Biophys Res Commun. 2005 Oct 21;336(2):702-8. PMID:16143309

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