9WSD | pdb_00009wsd

Cryo-EM structure of Escherichia coli FtsZ Filaments

• PDB DOI: https://doi.org/10.2210/pdb9WSD/pdb
• EM Map EMD-66197: EMDB EMDataResource

• Classification: CELL CYCLE
• Organism(s): Escherichia coli K-12
• Expression System: Escherichia coli 'BL21-Gold(DE3)pLysS AG
• Mutation(s): No 


• Deposited: 2025-09-13 Released: 2026-09-16 
• Deposition Author(s): Li, J., Luo, M.
• Funding Organization(s): Ministry of Education (MoE, Singapore), Ministry of Education (MoE, China)

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Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 4.00 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Literature

FtsZ Filaments

Li, J., Xu, X.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Homo 4-mer - A4 

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: electron microscopy

Macromolecule Content 

• Total Structure Weight: 163.22 kDa 
• Atom Count: 8,582 
• Modeled Residue Count: 1,210 
• Deposited Residue Count: 1,532 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Cell division protein FtsZ	A, B, C, D	383	Escherichia coli K-12	Mutation(s): 0  Gene Names: ftsZ, sfiB, sulB, b0095, JW0093
UniProt
Find proteins for P0A9A6 (Escherichia coli (strain K12)) Explore P0A9A6  Go to UniProtKB:  P0A9A6

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
GDP (Subject of Investigation/LOI)	E [auth A], F [auth B], G [auth C], H [auth D]	GUANOSINE-5'-DIPHOSPHATE C10 H15 N5 O11 P2 QGWNDRXFNXRZMB-UUOKFMHZSA-N

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 4.00 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

EM Software:

Task	Software Package	Version
RECONSTRUCTION	Coot

Structure Validation

Entry History 

& Funding Information

Deposition Data

• Released Date: 2026-09-16 
Deposition Author(s): Li, J., Luo, M.

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Funding Organization	Location	Grant Number
Ministry of Education (MoE, Singapore)	Singapore	A-0008412-00-00
Ministry of Education (MoE, China)	China	2024yc_yxhwbs10002
Ministry of Education (MoE, China)	China	2024NSCQ-KJFZMSX0229
Ministry of Education (MoE, China)	China	CSTB2024YCJH-KYXM0095

Revision History  

• Version 1.0: 2026-09-16
  Type: Initial release