2fhs

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Structure of Acyl Carrier Protein Bound to FabI, the Enoyl Reductase from Escherichia ColiStructure of Acyl Carrier Protein Bound to FabI, the Enoyl Reductase from Escherichia Coli

Structural highlights

2fhs is a 3 chain structure with sequence from "bacillus_coli"_migula_1895 "bacillus coli" migula 1895 and Ecow3. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Gene:acpP ("Bacillus coli" Migula 1895)
Activity:[acyl-carrier-protein_reductase_(NADH) Enoyl-[acyl-carrier-protein] reductase (NADH)], with EC number 1.3.1.9
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[ACP_ECOLI] Carrier of the growing fatty acid chain in fatty acid biosynthesis.[HAMAP-Rule:MF_01217]

Evolutionary Conservation

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

Publication Abstract from PubMed

Acyl carrier proteins play a central role in metabolism by transporting substrates in a wide variety of pathways including the biosynthesis of fatty acids and polyketides. However, despite their importance, there is a paucity of direct structural information concerning the interaction of ACPs with enzymes in these pathways. Here we report the structure of an acyl-ACP substrate bound to the Escherichia coli fatty acid biosynthesis enoyl reductase enzyme (FabI), based on a combination of x-ray crystallography and molecular dynamics simulation. The structural data are in agreement with kinetic studies on wild-type and mutant FabIs, and reveal that the complex is primarily stabilized by interactions between acidic residues in the ACP helix alpha2 and a patch of basic residues adjacent to the FabI substrate-binding loop. Unexpectedly, the acyl-pantetheine thioester carbonyl is not hydrogen-bonded to Tyr(156), a conserved component of the short chain alcohol dehydrogenase/reductase superfamily active site triad. FabI is a proven target for drug discovery and the present structure provides insight into the molecular determinants that regulate the interaction of ACPs with target proteins.

Structure of acyl carrier protein bound to FabI, the FASII enoyl reductase from Escherichia coli.,Rafi S, Novichenok P, Kolappan S, Zhang X, Stratton CF, Rawat R, Kisker C, Simmerling C, Tonge PJ J Biol Chem. 2006 Dec 22;281(51):39285-93. Epub 2006 Sep 29. PMID:17012233[1]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

See Also

References

  1. Rafi S, Novichenok P, Kolappan S, Zhang X, Stratton CF, Rawat R, Kisker C, Simmerling C, Tonge PJ. Structure of acyl carrier protein bound to FabI, the FASII enoyl reductase from Escherichia coli. J Biol Chem. 2006 Dec 22;281(51):39285-93. Epub 2006 Sep 29. PMID:17012233 doi:10.1074/jbc.M608758200

2fhs, resolution 2.70Å

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