8PQ4 | pdb_00008pq4

Structure of HosA transcriptional regulator from enteropathogenic Escherichia coli O127:H6 (strain E2348/69)

PDB DOI: https://doi.org/10.2210/pdb8PQ4/pdb
Entry: 8PQ4 supersedes: 7Z4P, 7ZP4

Classification: DNA BINDING PROTEIN
Organism(s): Escherichia coli O127:H6 str. E2348/69
Expression System: Escherichia coli BL21(DE3)
Mutation(s): No

Deposited: 2023-07-10 Released: 2023-07-19
Deposition Author(s): Arpita, G., Kavyashree, M., Kannika, B.R., Madan Kumar, S.
Funding Organization(s): Not funded

Experimental Data Snapshot

Method: X-RAY DIFFRACTION
Resolution: 2.25 Å
R-Value Free:
0.258 (Depositor), 0.239 (DCC)
R-Value Work:
0.212 (Depositor)
R-Value Observed:
0.214 (Depositor)

Starting Model: experimental
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wwPDB Validation 3D Report Full Report

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Ligand Structure Quality Assessment

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

Literature

Crystal structure of a MarR family transcriptional regulator protein

Goswami, A., Ravindranath, K.B., Shankar, M.K.

(2024) bioRxiv

DOI: https://doi.org/10.1101/2024.06.07.597875

Macromolecule Content

Total Structure Weight: 16.65 kDa
Atom Count: 1,127
Modeled Residue Count: 130
Deposited Residue Count: 143
Unique protein chains: 1

Macromolecules

Find similar proteins by:

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Transcriptional regulator HosA	A	143	Escherichia coli O127:H6 str. E2348/69	Mutation(s): 0 Gene Names: hosA, E2348C_3010
UniProt
Find proteins for P69782 (Escherichia coli O127:H6 (strain E2348/69 / EPEC)) Explore P69782 Go to UniProtKB: P69782
Entity Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
UniProt Group	P69782
Sequence Annotations Expand
Reference Sequence

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram	3D Interactions
EDO (Subject of Investigation/LOI) Query on EDO Download:Ideal Coordinates CCD File SDF format, chain B [auth A] MOL2 format, chain B [auth A] mmCIF format, chain B [auth A]	B [auth A]	1,2-ETHANEDIOL C₂ H₆ O₂ LYCAIKOWRPUZTN-UHFFFAOYSA-N		Interactions Focus chain B [auth A] Interactions & Density Focus chain B [auth A]

Experimental Data & Validation

Experimental Data

Method: X-RAY DIFFRACTION
Resolution: 2.25 Å
R-Value Free: 0.258 (Depositor), 0.239 (DCC)
R-Value Work: 0.212 (Depositor)
R-Value Observed: 0.214 (Depositor)

Space Group: P 4₃ 2 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 67.16	α = 90
b = 67.16	β = 90
c = 95.66	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
MAR345	data collection
iMOSFLM	data reduction
SCALA	data scaling
PHASER	phasing

Structure Validation

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Ligand Structure Quality Assessment

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Entry History

& Funding Information

Deposition Data

Released Date: 2023-07-19

Deposition Author(s):

Madan Kumar, S.

This entry supersedes: 7Z4P, 7ZP4

Funding Organization	Location	Grant Number
Not funded	India	--

Revision History (Full details and data files)

Version 1.0: 2023-07-19
Type: Initial release
Version 1.1: 2024-06-19
Changes: Data collection
Version 1.2: 2025-01-29
Changes: Advisory, Database references, Structure summary

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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.