3BCG | pdb_00003bcg

Conformational changes of the AcrR regulator reveal a mechanism of induction

PDB DOI: https://doi.org/10.2210/pdb3BCG/pdb

Classification: TRANSCRIPTION regulator
Organism(s): Escherichia coli K-12
Expression System: Escherichia coli K-12
Mutation(s): No

Deposited: 2007-11-12 Released: 2008-02-26
Deposition Author(s): Gu, R., Li, M., Su, C.C., Long, F., Yang, F., McDermott, G., Yu, E.Y.

Experimental Data Snapshot

Method: X-RAY DIFFRACTION
Resolution: 2.48 Å
R-Value Free:
0.268 (Depositor), 0.296 (DCC)
R-Value Work:
0.214 (Depositor), 0.305 (DCC)

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This is version 1.2 of the entry. See complete history.

Literature

Conformational change of the AcrR regulator reveals a possible mechanism of induction.

Gu, R., Li, M., Su, C.C., Long, F., Routh, M.D., Yang, F., McDermott, G., Yu, E.W.

(2008) Acta Crystallogr Sect F Struct Biol Cryst Commun 64: 584-588

PubMed: 18607081 Search on PubMed Search on PubMed Central
DOI: https://doi.org/10.1107/S1744309108016035
Primary Citation Related Structures:
3BCG

PubMed Abstract:
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.

Organizational Affiliation

Department of Physics and Astronomy, Iowa State University, Ames, IA 50011, USA.

Macromolecule Content

Total Structure Weight: 49.6 kDa
Atom Count: 3,428
Modeled Residue Count: 414
Deposited Residue Count: 430
Unique protein chains: 1

Macromolecules

Find similar proteins by:

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
HTH-type transcriptional regulator acrR	A, B	215	Escherichia coli K-12	Mutation(s): 0 Gene Names: acrR
UniProt
Find proteins for P0ACS9 (Escherichia coli (strain K12)) Explore P0ACS9 Go to UniProtKB: P0ACS9
Entity Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
UniProt Group	P0ACS9
Sequence Annotations Expand
Reference Sequence

Experimental Data & Validation

Experimental Data

Method: X-RAY DIFFRACTION
Resolution: 2.48 Å
R-Value Free: 0.268 (Depositor), 0.296 (DCC)
R-Value Work: 0.214 (Depositor), 0.305 (DCC)

Space Group: P 3₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 46.66	α = 90
b = 46.66	β = 90
c = 166.155	γ = 120

Software Package:

Software Name	Purpose
HKL-2000	data collection
SnB	phasing
CNS	refinement
HKL-2000	data reduction
HKL-2000	data scaling

Structure Validation

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Entry History

Deposition Data

Released Date: 2008-02-26

Deposition Author(s):

Revision History (Full details and data files)

Version 1.0: 2008-02-26
Type: Initial release
Version 1.1: 2011-07-13
Changes: Version format compliance
Version 1.2: 2024-02-21
Changes: Data collection, Database references

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RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.