6K2E

Crystal structure of cas2

• PDB DOI: https://doi.org/10.2210/pdb6K2E/pdb

• Classification: RNA BINDING PROTEIN
• Organism(s): Pyrococcus horikoshii OT3
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2019-05-14 Released: 2020-05-20 
• Deposition Author(s): Mo, X., Bi, M., Yuan, A.Y.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.80 Å
• R-Value Free: 0.268 
• R-Value Work: 0.208 
• R-Value Observed: 0.214 

Literature

Structural insight into endonuclease CRISPR-associated Cas2 protein

Mo, X.

To be published.

Biological Assembly 1  

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

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

Biological Assembly Evidence: gel filtration

Macromolecule Content

• Total Structure Weight: 20.94 kDa 
• Atom Count: 1,471 
• Modelled Residue Count: 175 
• Deposited Residue Count: 176 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
CRISPR/cas2 protein	A, B	88	Pyrococcus horikoshii OT3	Mutation(s): 0

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.80 Å
• R-Value Free: 0.268 
• R-Value Work: 0.208 
• R-Value Observed: 0.214 
• Space Group: P 6₂

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 101.313	α = 90
b = 101.313	β = 90
c = 39.585	γ = 120

Software Package:

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

Structure Validation

Entry History 

Deposition Data

• Released Date: 2020-05-20 
Deposition Author(s): Mo, X., Bi, M., Yuan, A.Y.

Revision History  

• Version 1.0: 2020-05-20
  Type: Initial release
  
• Version 1.1: 2023-11-22
  Changes: Data collection, Database references, Refinement description