12SZ | pdb_000012sz

Cryo-EM structure of Vibrio cholerae divisome complex FtsWIQLB (consensus)

• PDB DOI: https://doi.org/10.2210/pdb12SZ/pdb
• EM Map EMD-76738: EMDB EMDataResource

• Classification: MEMBRANE PROTEIN
• Organism(s): Vibrio cholerae
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2026-04-17 Released: 2026-11-04 
• Deposition Author(s): Hao, A., Lee, S.-Y.
• Funding Organization(s): Other private

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Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 3.73 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Starting Models: in silico, experimental

Literature

Molecular basis of coupled peptidoglycan synthesis by the FtsWIQLB divisome complex from Vibrio cholerae

Hao, A., Okawa, R., Katsuyama, A., Ichikawa, S., Lee, S.Y.

(2026) Nat Commun 

• DOI: https://doi.org/10.1038/s41467-026-78795-0

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 4-mer - A1B1C1D1 Pseudo Symmetry: Asymmetric - C1 
Pseudo Stoichiometry: Hetero 4-mer - A2B1C1 

Biological assembly 1 assigned by authors and generated by (software)

Biological Assembly Evidence: electron microscopy

Macromolecule Content 

• Total Structure Weight: 136.12 kDa 
• Atom Count: 4,373 
• Modeled Residue Count: 612 
• Deposited Residue Count: 1,225 
• Unique protein chains: 4

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Cell division protein FtsB	A	114	Vibrio cholerae	Mutation(s): 0  Gene Names: ftsB, VC_0527
UniProt
Find proteins for Q9KUJ3 (Vibrio cholerae serotype O1 (strain ATCC 39315 / El Tor Inaba N16961)) Explore Q9KUJ3  Go to UniProtKB:  Q9KUJ3

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Cell division protein FtsL	B	112	Vibrio cholerae	Mutation(s): 0  Gene Names: ftsL, VC_2408
UniProt
Find proteins for Q9KPG0 (Vibrio cholerae serotype O1 (strain ATCC 39315 / El Tor Inaba N16961)) Explore Q9KPG0  Go to UniProtKB:  Q9KPG0

Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details	Image
Peptidoglycan glycosyltransferase FtsW	C [auth D]	419	Vibrio cholerae	Mutation(s): 0  Gene Names: ftsW, VC_2402 EC: 2.4.99.28
UniProt
Find proteins for Q9KPG6 (Vibrio cholerae serotype O1 (strain ATCC 39315 / El Tor Inaba N16961)) Explore Q9KPG6  Go to UniProtKB:  Q9KPG6

Entity ID: 4
Molecule	Chains	Sequence Length	Organism	Details	Image
Peptidoglycan D,D-transpeptidase FtsI	D [auth E]	580	Vibrio cholerae	Mutation(s): 0  Gene Names: ftsI, VC_2407 EC: 3.4.16.4
UniProt
Find proteins for Q9KPG1 (Vibrio cholerae serotype O1 (strain ATCC 39315 / El Tor Inaba N16961)) Explore Q9KPG1  Go to UniProtKB:  Q9KPG1

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 3.73 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

EM Software:

Task	Software Package	Version
MODEL REFINEMENT	PHENIX	1.19.2_4158
RECONSTRUCTION	cryoSPARC

Structure Validation

Entry History 

& Funding Information

Deposition Data

• Released Date: 2026-11-04 
Deposition Author(s): Hao, A., Lee, S.-Y.

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Funding Organization	Location	Grant Number
Other private	United States	Duke Science Technology Scholar Funds

Revision History  

• Version 1.0: 2026-11-04
  Type: Initial release