4WJ0

Structure of PH1245, a cas1 from Pyrococcus horikoshii

• PDB DOI: https://doi.org/10.2210/pdb4WJ0/pdb
• Entry: 4WJ0 supersedes: 3PV9

• Classification: IMMUNE SYSTEM
• Organism(s): Pyrococcus horikoshii OT3
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2014-09-29 Released: 2014-10-15 
• Deposition Author(s): Petit, P., Brown, G., Savchenko, A., Yakunin, A.F.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.85 Å
• R-Value Free: 0.282 
• R-Value Work: 0.227 
• R-Value Observed: 0.229 

Literature

Structure of PH1245, a cas1 from Pyrococcus horikoshii

Petit, P., Brown, G., Savchenko, A., Yakunin, A.F.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Homo 2-mer - A2 

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

Macromolecule Content

• Total Structure Weight: 75.7 kDa 
• Atom Count: 5,165 
• Modelled Residue Count: 624 
• Deposited Residue Count: 644 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
CRISPR-associated endonuclease Cas1	A, B	322	Pyrococcus horikoshii OT3	Mutation(s): 0  Gene Names: cas1, PH1245 EC: 3.1
UniProt
Find proteins for O58938 (Pyrococcus horikoshii (strain ATCC 700860 / DSM 12428 / JCM 9974 / NBRC 100139 / OT-3)) Explore O58938  Go to UniProtKB:  O58938

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
CL	C [auth A], D [auth B]	CHLORIDE ION Cl VEXZGXHMUGYJMC-UHFFFAOYSA-M

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.85 Å
• R-Value Free: 0.282 
• R-Value Work: 0.227 
• R-Value Observed: 0.229 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 125.89	α = 90
b = 58.672	β = 90
c = 90.147	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
PHASER	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2014-10-15 
Deposition Author(s): Petit, P., Brown, G., Savchenko, A., Yakunin, A.F.
• This entry supersedes: 3PV9

Revision History  

• Version 1.0: 2014-10-15
  Type: Initial release
  
• Version 1.1: 2023-09-27
  Changes: Data collection, Database references, Derived calculations, Other, Refinement description, Source and taxonomy