7XG1

CryoEM structure of type IV-A Csf-crRNA binary complex

• PDB DOI: https://doi.org/10.2210/pdb7XG1/pdb
• NAKB: 7XG1
• EM Map EMD-33182: EMDB EMDataResource

• Classification: STRUCTURAL PROTEIN/RNA
• Organism(s): Pseudomonas aeruginosa
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2022-04-02 Released: 2023-08-02 
• Deposition Author(s): Zhang, J.T., Cui, N., Huang, H.D., Jia, N.
• Funding Organization(s): Not funded

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Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 3.30 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Literature

Type IV-A CRISPR-Csf complex: Assembly, dsDNA targeting, and CasDinG recruitment

Cui, N., Zhang, J.T., Liu, Y., Liu, Y., Liu, X.Y., Wang, C., Huang, H., Jia, N.

(2023) Mol Cell 83: 2493

• DOI: https://doi.org/10.1016/j.molcel.2023.05.036

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 7-mer - A5B1C1 Local Symmetry: Helical - H  (Explore in 3D)
Local Stoichiometry: Homo 5-mer - A5 

Local Symmetry: Helical - H  (Explore in 3D)
Local Stoichiometry: Homo 5-mer - A5 

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: gel filtration

Macromolecule Content

• Total Structure Weight: 259.61 kDa 
• Atom Count: 15,867 
• Modelled Residue Count: 2,027 
• Deposited Residue Count: 2,274 
• Unique protein chains: 3
• Unique nucleic acid chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Csf1	A	253	Pseudomonas aeruginosa	Mutation(s): 0

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Csf3	B	220	Pseudomonas aeruginosa	Mutation(s): 0

Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details	Image
Csf2	C, D, E, F, G	348	Pseudomonas aeruginosa	Mutation(s): 0

Entity ID: 4
Molecule	Chains	Length	Organism	Image
crRNA	H	61	Pseudomonas aeruginosa

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
ZN (Subject of Investigation/LOI)	I [auth A]	ZINC ION Zn PTFCDOFLOPIGGS-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 3.30 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2023-08-02 
Deposition Author(s): Zhang, J.T., Cui, N., Huang, H.D., Jia, N.

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Funding Organization	Location	Grant Number
Not funded		--

Revision History  

• Version 1.0: 2023-08-02
  Type: Initial release