9ZN5 | pdb_00009zn5

Hybrid model of a dimer of BrxC-BrxB fusion complexed with PglZ from the Acinetobacter BREX system

• PDB DOI: https://doi.org/10.2210/pdb9ZN5/pdb
• EM Map EMD-74435: EMDB EMDataResource

• Classification: ANTIMICROBIAL PROTEIN
• Organism(s): Acinetobacter sp. NEB 394
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2025-12-12 Released: 2026-04-08 
• Deposition Author(s): Doyle, L.A., Stoddard, B.L., Kaiser, B., Kaiser, A.
• Funding Organization(s): National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS), New England Biolabs

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Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 6.94 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Starting Model: in silico

Literature

Competing forms of protein-protein association and DNA binding exhibited by BrxC from the BREX phage restriction system

Doyle, L.A.

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Hetero 4-mer - A2B2 

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: electron microscopy

Macromolecule Content 

• Total Structure Weight: 371.1 kDa 
• Atom Count: 26,154 
• Modeled Residue Count: 3,266 
• Deposited Residue Count: 3,266 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
BrxC-BrxB	A, C	754	Acinetobacter sp. NEB 394	Mutation(s): 0

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
PglZ	B, D	879	Acinetobacter sp. NEB 394	Mutation(s): 0

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 6.94 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

EM Software:

Task	Software Package	Version
RECONSTRUCTION	cryoSPARC	4.5.3

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2026-04-08 
Deposition Author(s): Doyle, L.A., Stoddard, B.L., Kaiser, B., Kaiser, A.

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Funding Organization	Location	Grant Number
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)	United States	5R35 GM148166
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)	United States	R15 GM140375
New England Biolabs	United States	--

Revision History  

• Version 1.0: 2026-04-08
  Type: Initial release