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1e2x

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[[Image:1e2x.gif|left|200px]]
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{{STRUCTURE_1e2x| PDB=1e2x | SCENE= }}
{{STRUCTURE_1e2x| PDB=1e2x | SCENE= }}
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'''FADR, FATTY ACID RESPONSIVE TRANSCRIPTION FACTOR FROM E. COLI'''
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===FADR, FATTY ACID RESPONSIVE TRANSCRIPTION FACTOR FROM E. COLI===
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==Overview==
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FadR is a dimeric acyl coenzyme A (acyl CoA)-binding protein and transcription factor that regulates the expression of genes encoding fatty acid biosynthetic and degrading enzymes in Escherichia coli. Here, the 2.0 A crystal structure of full-length FadR is described, determined using multi-wavelength anomalous dispersion. The structure reveals a dimer and a two-domain fold, with DNA-binding and acyl-CoA-binding sites located in an N-terminal and C-terminal domain, respectively. The N-terminal domain contains a winged helix-turn-helix prokaryotic DNA-binding fold. Comparison with known structures and analysis of mutagenesis data delineated the site of interaction with DNA. The C-terminal domain has a novel fold, consisting of a seven-helical bundle with a crossover topology. Careful analysis of the structure, together with mutational and biophysical data, revealed a putative hydrophobic acyl-CoA-binding site, buried in the core of the seven-helical bundle. This structure aids in understanding FadR function at a molecular level, provides the first structural scaffold for the large GntR family of transcription factors, which are keys in the control of metabolism in bacterial pathogens, and could thus be a possible target for novel chemotherapeutic agents.
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{{ABSTRACT_PUBMED_11013219}}
==About this Structure==
==About this Structure==
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[[Category: Wierenga, R K.]]
[[Category: Wierenga, R K.]]
[[Category: Transcriptional regulation]]
[[Category: Transcriptional regulation]]
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Revision as of 21:03, 30 June 2008

Template:STRUCTURE 1e2x

FADR, FATTY ACID RESPONSIVE TRANSCRIPTION FACTOR FROM E. COLI

Template:ABSTRACT PUBMED 11013219

About this Structure

1E2X is a Single protein structure of sequence from Escherichia coli. Full crystallographic information is available from OCA.

Reference

Crystal structure of FadR, a fatty acid-responsive transcription factor with a novel acyl coenzyme A-binding fold., van Aalten DM, DiRusso CC, Knudsen J, Wierenga RK, EMBO J. 2000 Oct 2;19(19):5167-77. PMID:11013219

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