9Q6M | pdb_00009q6m

Crystal Structure of Vibrio cholerae PilU, a PilT-dependent Retraction ATPase - Crystal Form 1.

PDB DOI: https://doi.org/10.2210/pdb9Q6M/pdb

Classification: MOTOR PROTEIN
Organism(s): Vibrio cholerae O1 biovar El Tor str. N16961
Expression System: Escherichia coli BL21(DE3)
Mutation(s): No

Deposited: 2025-08-22 Released: 2026-05-20
Deposition Author(s): Minasov, G., Shukla, S., Shuvalova, L., Brunzelle, J.S., Satchell, K.J.F., Center for Structural Biology of Infectious Diseases (CSBID)
Funding Organization(s): National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)

Experimental Data Snapshot

Method: X-RAY DIFFRACTION
Resolution: 2.95 Å
R-Value Free:
0.265 (Depositor), 0.261 (DCC)
R-Value Work:
0.223 (Depositor), 0.222 (DCC)
R-Value Observed:
0.225 (Depositor)

Starting Model: experimental
View more details

wwPDB Validation 3D Report Full Report

Validation slider image for 9Q6M

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

Literature

Analysis of the heterogenous structural states of the hexameric ATPase PilU of the type IV pili from Vibrio cholerae

Guo, Y., Shukla, S., Minasov, G., Inniss, N.L., Klose, T., Tokars, V.L., Mondragon, A., Otwinowski, Z., Borek, D., Satchell, K.J.F.

(2026) Protein Sci 35

DOI: https://doi.org/10.1002/pro.70609

Macromolecule Content

Total Structure Weight: 257.7 kDa
Atom Count: 16,623
Modeled Residue Count: 2,107
Deposited Residue Count: 2,316
Unique protein chains: 1

Macromolecules

Find similar proteins by:

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Twitching motility protein PilT	A, B, C, D, E A, B, C, D, E, F	386	Vibrio cholerae O1 biovar El Tor str. N16961	Mutation(s): 0 Gene Names: VC_0463
UniProt
Find proteins for Q9KUQ2 (Vibrio cholerae serotype O1 (strain ATCC 39315 / El Tor Inaba N16961)) Explore Q9KUQ2 Go to UniProtKB: Q9KUQ2
Entity Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
UniProt Group	Q9KUQ2
Sequence Annotations Expand
Reference Sequence

Experimental Data & Validation

Experimental Data

Method: X-RAY DIFFRACTION
Resolution: 2.95 Å
R-Value Free: 0.265 (Depositor), 0.261 (DCC)
R-Value Work: 0.223 (Depositor), 0.222 (DCC)
R-Value Observed: 0.225 (Depositor)

Space Group: P 2₁ 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 108.311	α = 90
b = 133.732	β = 90
c = 181.795	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
PDB_EXTRACT	data extraction
HKL-3000	data reduction
HKL-3000	data scaling
PHASER	phasing

Structure Validation

View Full Validation Report

View more in-depth experimental data

Entry History

& Funding Information

Deposition Data

Released Date: 2026-05-20

Deposition Author(s):

Brunzelle, J.S.

Satchell, K.J.F.

Center for Structural Biology of Infectious Diseases (CSBID)

Funding Organization	Location	Grant Number
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)	United States	HHSN272201700060C

Revision History (Full details and data files)

Version 1.0: 2026-05-20
Type: Initial release

RCSB PDB is hosted by

RCSB PDB is a member of

RCSB Partners
Nucleic Acid Knowledgebase

CoreTrustSeal

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.