3BCG image
Deposition Date 2007-11-12
Release Date 2008-02-26
Last Version Date 2024-02-21
Entry Detail
PDB ID:
3BCG
Keywords:
TRANSCRIPTION regulator
Title:
Conformational changes of the AcrR regulator reveal a mechanism of induction
Biological Source:
Source Organism:
Escherichia coli K12 (Taxon ID: 83333)
Host Organism:
Escherichia coli K12
Method Details:
Experimental Method:
X-RAY DIFFRACTION
Resolution:
2.48 Å
R-Value Free:
0.26
R-Value Work:
0.21
Space Group:
P 31
3BCG validation report
Macromolecular Entities
Protein Blast
Polymer Type:polypeptide(L)
Molecule:HTH-type transcriptional regulator acrR
Gene (Uniprot):acrR
Chain IDs:A, B
Chain Length:215
Number of Molecules:2
Biological Source:Escherichia coli K12
UniProt ID:P0ACS9 Pfam ID:PF00440, PF08361
Primary Citation
Conformational change of the AcrR regulator reveals a possible mechanism of induction.
Acta Crystallogr.,Sect.F 64 584 588 (2008)
PMID: 18607081 DOI: 10.1107/S1744309108016035

Abstact

The Escherichia coli AcrR multidrug-binding protein represses transcription of acrAB and is induced by many structurally unrelated cytotoxic compounds. The crystal structure of AcrR in space group P222(1) has been reported previously. This P222(1) structure has provided direct information about the multidrug-binding site and important residues for drug recognition. Here, a crystal structure of this regulator in space group P3(1) is presented. Comparison of the two AcrR structures reveals possible mechanisms of ligand binding and AcrR regulation.

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Primary Citation of related structures
3BCG