2fs2

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{{STRUCTURE_2fs2| PDB=2fs2 | SCENE= }}
{{STRUCTURE_2fs2| PDB=2fs2 | SCENE= }}
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'''Structure of the E. coli PaaI protein from the phyenylacetic acid degradation operon'''
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===Structure of the E. coli PaaI protein from the phyenylacetic acid degradation operon===
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==Overview==
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The structure and biochemical function of the hot dog-fold thioesterase PaaI operative in the aerobic phenylacetate degradation pathway are examined. PaaI showed modest activity with phenylacetyl-coenzyme A, suggestive of a role in coenzyme A release from this pathway intermediate in the event of limiting downstream pathway enzymes. Minimal activity was observed with aliphatic acyl-coenzyme A thioesters, which ruled out PaaI function in the lower phenylacetate pathway. PaaI was most active with ring-hydroxylated phenylacetyl-coenzyme A thioesters. The x-ray crystal structure of the Escherichia coli thioesterase is reported and analyzed to define the structural basis of substrate recognition and catalysis. The contributions of catalytic and substrate binding residues, thus, identified were examined through steady-state kinetic analysis of site-directed mutant proteins.
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(as it appears on PubMed at http://www.pubmed.gov), where 16464851 is the PubMed ID number.
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{{ABSTRACT_PUBMED_16464851}}
==About this Structure==
==About this Structure==
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[[Category: Structural genomic]]
[[Category: Structural genomic]]
[[Category: T820]]
[[Category: T820]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun May 4 04:14:42 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Jul 27 18:27:30 2008''

Revision as of 15:27, 27 July 2008

Image:2fs2.png

Template:STRUCTURE 2fs2

Structure of the E. coli PaaI protein from the phyenylacetic acid degradation operon

Template:ABSTRACT PUBMED 16464851

About this Structure

2FS2 is a Single protein structure of sequence from Escherichia coli. Full crystallographic information is available from OCA.

Reference

Structure, function, and mechanism of the phenylacetate pathway hot dog-fold thioesterase PaaI., Song F, Zhuang Z, Finci L, Dunaway-Mariano D, Kniewel R, Buglino JA, Solorzano V, Wu J, Lima CD, J Biol Chem. 2006 Apr 21;281(16):11028-38. Epub 2006 Feb 7. PMID:16464851

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