9I37 | pdb_00009i37

Csu pilus rod purified from Acinetobacter baumannii

• PDB DOI: https://doi.org/10.2210/pdb9I37/pdb
• EM Map EMD-52587: EMDB EMDataResource

• Classification: CELL ADHESION
• Organism(s): Acinetobacter baumannii
• Mutation(s): No 


• Deposited: 2025-01-22 Released: 2025-12-17 
• Deposition Author(s): Malmi, H., Zavialov, A.V., Pakharukova, N.
• Funding Organization(s): Academy of Finland, Sigrid Juselius Foundation

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Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 3.28 Å
• Aggregation State: FILAMENT 
• Reconstruction Method: HELICAL 

Starting Model: experimental

Literature

Antiparallel stacking of Csu pili drives Acinetobacter baumannii 3D biofilm assembly

Malmi, H., Pakharukova, N., Paul, B., Tuittila, M., Ahmad, I., Knight, S.D., Uhlin, B.E., Ghosal, D., Zavialov, A.V.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 9-mer - A8B1 Local Symmetry: Helical - H  (Explore in 3D)
Local Stoichiometry: Homo 8-mer - A8 

Local Symmetry: Helical - H  (Explore in 3D)
Local Stoichiometry: Homo 8-mer - A8 

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

Biological Assembly Evidence: electron microscopy

Macromolecule Content 

• Total Structure Weight: 144.63 kDa 
• Atom Count: 9,032 
• Modeled Residue Count: 1,240 
• Deposited Residue Count: 1,395 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
CsuA/B	A, B, C, D, E, F, G, H, I	155	Acinetobacter baumannii	Mutation(s): 0
UniProt
Find proteins for A0A6F8TDQ5 (Acinetobacter baumannii) Explore A0A6F8TDQ5  Go to UniProtKB:  A0A6F8TDQ5

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 3.28 Å
• Aggregation State: FILAMENT 
• Reconstruction Method: HELICAL 

EM Software:

Task	Software Package	Version
RECONSTRUCTION	cryoSPARC	v4.5.3
MODEL REFINEMENT	PHENIX	1.20.1_4487:

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2025-12-17 
Deposition Author(s): Malmi, H., Zavialov, A.V., Pakharukova, N.

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Funding Organization	Location	Grant Number
Academy of Finland	Finland	321762
Academy of Finland	Finland	360760
Sigrid Juselius Foundation	Finland	2023

Revision History  

• Version 1.0: 2025-12-17
  Type: Initial release