6V9Q

Cryo-EM structure of Cascade-TniQ binary complex

• PDB DOI: https://doi.org/10.2210/pdb6V9Q/pdb
• NAKB: 6V9Q
• EM Map EMD-21126: EMDB EMDataResource

• Classification: IMMUNE SYSTEM
• Organism(s): Vibrio cholerae
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2019-12-15 Released: 2020-01-29 
• Deposition Author(s): Jia, N., Patel, D.J.

---

Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 2.90 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Literature

Structure-function insights into the initial step of DNA integration by a CRISPR-Cas-Transposon complex.

Jia, N., Xie, W., de la Cruz, M.J., Eng, E.T., Patel, D.J.

(2020) Cell Res 30: 182-184

• PubMed: 31925391 
• DOI: https://doi.org/10.1038/s41422-019-0272-2
• Primary Citation of Related Structures:  
  6V9P, 6V9Q, 6VBW

---

Organizational Affiliation: 

Structural Biology Program, Memorial Sloan Kettering Cancer Center, New York, NY, 10065, USA. [e-mail].

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 10-mer - A6B2C1D1 

Local Symmetry: Helical - H  (Explore in 3D)
Local Stoichiometry: Homo 6-mer - A6 Local Symmetry: Cyclic - C2  (Explore in 3D)
Local Stoichiometry: Homo 2-mer - B2 

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: gel filtration

Macromolecule Content

• Total Structure Weight: 445.77 kDa 
• Atom Count: 28,090 
• Modelled Residue Count: 3,398 
• Deposited Residue Count: 3,800 
• Unique protein chains: 4
• Unique nucleic acid chains: 1

Macromolecules

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Cas8	B [auth A]	640	Vibrio cholerae	Mutation(s): 0  Gene Names: FXE93_08750

Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details	Image
TniQ family protein	C [auth J], D [auth I]	394	Vibrio cholerae	Mutation(s): 0  Gene Names: FXE93_08745

Entity ID: 4
Molecule	Chains	Sequence Length	Organism	Details	Image
Type I-F CRISPR-associated protein Csy3	E [auth G], F [auth B], G [auth C], H [auth D], I [auth E], J [auth F]	352	Vibrio cholerae	Mutation(s): 0  Gene Names: csy3, FXE93_08755

Entity ID: 5
Molecule	Chains	Sequence Length	Organism	Details	Image
Type I-F CRISPR-associated endoribonuclease Cas6/Csy4	K [auth H]	199	Vibrio cholerae	Mutation(s): 0  Gene Names: cas6f, FXE93_08760

Entity ID: 1
Molecule	Chains	Length	Organism	Image
RNA (61-MER)	A [auth K]	61	Vibrio cholerae

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
ZN	L [auth J], M [auth J], N [auth I], O [auth I]	ZINC ION Zn PTFCDOFLOPIGGS-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 2.90 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

EM Software:

Task	Software Package	Version
RECONSTRUCTION	RELION	2.1

Structure Validation

Entry History 

Deposition Data

• Released Date: 2020-01-29 
Deposition Author(s): Jia, N., Patel, D.J.

Revision History  

• Version 1.0: 2020-01-29
  Type: Initial release
  
• Version 1.1: 2020-02-19
  Changes: Database references
• Version 1.2: 2024-03-06
  Changes: Data collection, Database references