9MRR | pdb_00009mrr

Cryo-EM structure of KwaA with C4 symmetry

PDB DOI: https://doi.org/10.2210/pdb9MRR/pdb
EM Map EMD-48562: EMDB EMDataResource

Classification: IMMUNE SYSTEM
Organism(s): Escherichia coli
Expression System: Escherichia coli
Mutation(s): No

Deposited: 2025-01-08 Released: 2025-08-06
Deposition Author(s): Zhang, Z., Patel, D.J.
Funding Organization(s): National Institutes of Health/National Cancer Institute (NIH/NCI)

Experimental Data Snapshot

Method: ELECTRON MICROSCOPY
Resolution: 4.28 Å
Aggregation State: PARTICLE
Reconstruction Method: SINGLE PARTICLE

wwPDB Validation 3D Report Full Report

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

Literature

Cryo-EM structure of KwaA with C4 symmetry

Zhang, Z., Patel, D.J.

To be published.

Macromolecule Content

Total Structure Weight: 90.11 kDa
Atom Count: 6,048
Modeled Residue Count: 740
Deposited Residue Count: 780
Unique protein chains: 1

Macromolecules

Find similar proteins by:

(by identity cutoff) | 3D Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Kiwa protein KwaA	A, B, C, D	195	Escherichia coli	Mutation(s): 0 Gene Names: kwaA, ECO55CA74_24535
UniProt
Find proteins for P0DW45 (Escherichia coli O55:H7 (strain RM12579 / EPEC)) Explore P0DW45 Go to UniProtKB: P0DW45
Entity Groups
Sequence Clusters	30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt Group	P0DW45
Sequence Annotations Expand
Reference Sequence

Experimental Data & Validation

Experimental Data

Method: ELECTRON MICROSCOPY
Resolution: 4.28 Å
Aggregation State: PARTICLE
Reconstruction Method: SINGLE PARTICLE

EM Software:

Task	Software Package	Version
MODEL REFINEMENT	PHENIX	1.20.1_4487

Structure Validation

View Full Validation Report

Entry History & Funding Information

Deposition Data

Released Date: 2025-08-06

Deposition Author(s):

Funding Organization	Location	Grant Number
National Institutes of Health/National Cancer Institute (NIH/NCI)	United States	P30 CA008748

Revision History (Full details and data files)

Version 1.0: 2025-08-06
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. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.