4UHT

Crystal structure of the DNA binding domain of CpxR from E. coli

PDB DOI: https://doi.org/10.2210/pdb4UHT/pdb

Classification: TRANSCRIPTION
Organism(s): Escherichia coli K-12
Expression System: Escherichia coli
Mutation(s): Yes

Deposited: 2015-03-25 Released: 2016-04-13
Deposition Author(s): Mechaly, A.E., Alzari, P.M.A.

Experimental Data Snapshot

Method: X-RAY DIFFRACTION
Resolution: 1.15 Å
R-Value Free: 0.156
R-Value Work: 0.128
R-Value Observed: 0.129

wwPDB Validation 3D Report Full Report

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

Literature

Conformational plasticity of the response regulator CpxR, a key player in Gammaproteobacteria virulence and drug-resistance.

Mechaly, A.E., Haouz, A., Sassoon, N., Buschiazzo, A., Betton, J.M., Alzari, P.M.

(2018) J Struct Biol 204: 165-171

PubMed: 30086390 Search on PubMed
DOI: https://doi.org/10.1016/j.jsb.2018.08.001
Primary Citation of Related Structures:
4UHS, 4UHT

PubMed Abstract:
The transcriptional regulator CpxR mediates an adaptive response to envelope stress, tightly linked to virulence and antibiotics resistance in several Gammaproteobacteria pathogens. In this work, we integrated crystallographic and small-angle X-ray scattering data to gain insights into the structure and conformational plasticity of CpxR from Escherichia coli. CpxR dimerizes through two alternative interaction surfaces. Moreover, widely different CpxR conformations coexist in solution, from compact to fully extended ones. The possible functional implications of these structural features are discussed.

Organizational Affiliation

Institut Pasteur, Unité de Microbiologie Structurale, CNRS UMR 3528 & Université Paris Diderot, 25 rue du Dr. Roux, 75724 Paris CEDEX 15, France. Electronic address: ariel.mechaly@pasteur.fr.

Macromolecule Content

Total Structure Weight: 23.12 kDa
Atom Count: 2,027
Modelled Residue Count: 204
Deposited Residue Count: 204
Unique protein chains: 1

Macromolecules

Find similar proteins by:

(by identity cutoff) | 3D Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
TRANSCRIPTIONAL REGULATORY PROTEIN CPXR	A, B	102	Escherichia coli K-12	Mutation(s): 1
UniProt
Find proteins for P0AE88 (Escherichia coli (strain K12)) Explore P0AE88 Go to UniProtKB: P0AE88
Entity Groups
Sequence Clusters	30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt Group	P0AE88
Sequence Annotations Expand
Reference Sequence

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram	3D Interactions
CL Query on CL Download Ideal Coordinates CCD File SDF format, chain C [auth A] SDF format, chain D [auth B] MOL2 format, chain C [auth A] MOL2 format, chain D [auth B]	C [auth A], D [auth B]	CHLORIDE ION Cl VEXZGXHMUGYJMC-UHFFFAOYSA-M		Interactions Focus chain C [auth A] Focus chain D [auth B] Interactions & Density Focus chain C [auth A] Focus chain D [auth B]