6JHZ | pdb_00006jhz

Crystal structure of cas2

• PDB DOI: https://doi.org/10.2210/pdb6JHZ/pdb

• Classification: RNA BINDING PROTEIN
• Organism(s): Treponema denticola ATCC 35405, Escherichia coli
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2019-02-19 Released: 2020-03-25 
• Deposition Author(s): Bi, M., Mo, X., Wang, C., Yuan, A.Y.

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Free: 
  0.232 (Depositor), 0.232 (DCC) 
• R-Value Work: 
  0.195 (Depositor), 0.196 (DCC) 
• R-Value Observed: 
  0.198 (Depositor) 

Literature

Structural insight into endonuclease CRISPR-associated Cas2 protein

Bi, M., Mo, X., Wang, C., Yuan, A.Y.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 3-mer - A2B1 Local Symmetry: Cyclic - C2  (Explore in 3D)
Local Stoichiometry: Homo 2-mer - A2 

Local Symmetry: Cyclic - C2  (Explore in 3D)
Local Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: homology

Macromolecule Content 

• Total Structure Weight: 22.04 kDa 
• Atom Count: 1,683 
• Modeled Residue Count: 189 
• Deposited Residue Count: 191 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
CRISPR-associated endoribonuclease Cas2	A, B	93	Treponema denticola ATCC 35405	Mutation(s): 0  Gene Names: cas2, TDE_0329 EC: 3.1
UniProt
Find proteins for Q73QW4 (Treponema denticola (strain ATCC 35405 / DSM 14222 / CIP 103919 / JCM 8153 / KCTC 15104)) Explore Q73QW4  Go to UniProtKB:  Q73QW4

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
5-mer peptide	C [auth Q]	5	Escherichia coli	Mutation(s): 0

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Free:  0.232 (Depositor), 0.232 (DCC) 
• R-Value Work:  0.195 (Depositor), 0.196 (DCC) 
• R-Value Observed: 0.198 (Depositor) 

Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 26.592	α = 90
b = 76.391	β = 90
c = 88.445	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
HKL-2000	data reduction
HKL-2000	data scaling
MoRDa	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2020-03-25 
Deposition Author(s): Bi, M., Mo, X., Wang, C., Yuan, A.Y.

Revision History  

• Version 1.0: 2020-03-25
  Type: Initial release
  
• Version 1.1: 2024-03-27
  Changes: Data collection, Database references