8ZA5 | pdb_00008za5

Crystal structure of HsmR

PDB DOI: https://doi.org/10.2210/pdb8ZA5/pdb

Classification: TRANSCRIPTION
Organism(s): Clostridioides difficile
Expression System: Escherichia coli
Mutation(s): No

Deposited: 2024-04-24 Released: 2025-10-29
Deposition Author(s): Park, S.Y.
Funding Organization(s): National Research Foundation (NRF, Korea)

Experimental Data Snapshot

Method: X-RAY DIFFRACTION
Resolution: 2.20 Å
R-Value Free:
0.264 (Depositor), 0.191 (DCC)
R-Value Work:
0.178 (Depositor), 0.187 (DCC)
R-Value Observed:
0.183 (Depositor)

Starting Model: experimental
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wwPDB Validation 3D Report Full Report

This is version 1.0 of the entry. See complete history.

Literature

Crystal structure of C. difficile HsmR

Park, S.Y., Rho, S.H.

To be published.

Macromolecule Content

Total Structure Weight: 38.72 kDa
Atom Count: 2,392
Modeled Residue Count: 275
Deposited Residue Count: 334
Unique protein chains: 1

Macromolecules

Find similar proteins by:

(by identity cutoff) | 3D Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
MarR-family transcriptional regulator	A, B	167	Clostridioides difficile	Mutation(s): 0 Gene Names: CDR20291_0782
UniProt
Find proteins for A0A9R0BIW1 (Clostridioides difficile (strain R20291)) Explore A0A9R0BIW1 Go to UniProtKB: A0A9R0BIW1
Entity Groups
Sequence Clusters	30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt Group	A0A9R0BIW1
Sequence Annotations Expand
Reference Sequence

Experimental Data & Validation

Experimental Data

Method: X-RAY DIFFRACTION
Resolution: 2.20 Å
R-Value Free: 0.264 (Depositor), 0.191 (DCC)
R-Value Work: 0.178 (Depositor), 0.187 (DCC)
R-Value Observed: 0.183 (Depositor)

Space Group: P 3₂ 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 97.875	α = 90
b = 97.875	β = 90
c = 56.855	γ = 120

Software Package:

Software Name	Purpose
REFMAC	refinement
HKL-2000	data reduction
HKL-2000	data scaling
MoRDa	phasing

Structure Validation

View Full Validation Report

Entry History & Funding Information

Deposition Data

Released Date: 2025-10-29

Deposition Author(s):

Funding Organization	Location	Grant Number
National Research Foundation (NRF, Korea)	Korea, Republic Of	--

Revision History (Full details and data files)

Version 1.0: 2025-10-29
Type: Initial release

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.