3QYF | pdb_00003qyf

Crystal structure of the CRISPR-associated protein SSO1393 from Sulfolobus solfataricus

• PDB DOI: https://doi.org/10.2210/pdb3QYF/pdb

• Classification: ANTIVIRAL PROTEIN
• Organism(s): Saccharolobus solfataricus
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2011-03-03 Released: 2011-03-23 
• Deposition Author(s): Petit, P., Xu, X., Chang, C., Savchenko, A., Yakunin, A.F.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.90 Å
• R-Value Free: 
  0.207 (Depositor), 0.202 (DCC) 
• R-Value Work: 
  0.168 (Depositor), 0.166 (DCC) 
• R-Value Observed: 
  0.170 (Depositor) 

Literature

Crystal structure of the CRISPR-associated protein SSO1393 from Sulfolobus solfataricus

Petit, P., Xu, X., Beloglazova, N., Brown, G., Savchenko, A., Yakunin, A.F.

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)

Macromolecule Content 

• Total Structure Weight: 76.09 kDa 
• Atom Count: 4,746 
• Modeled Residue Count: 541 
• Deposited Residue Count: 648 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
CRISPR-ASSOCIATED PROTEIN	A, B	324	Saccharolobus solfataricus	Mutation(s): 0  Gene Names: SSO1393 EC: 4.6.1
UniProt
Find proteins for Q97YD2 (Saccharolobus solfataricus (strain ATCC 35092 / DSM 1617 / JCM 11322 / P2)) Explore Q97YD2  Go to UniProtKB:  Q97YD2

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
MG	C [auth A], D [auth B]	MAGNESIUM ION Mg JLVVSXFLKOJNIY-UHFFFAOYSA-N

Modified Residues  1 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
MSE	A, B	L-PEPTIDE LINKING	C5 H11 N O2 Se		MET

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.90 Å
• R-Value Free:  0.207 (Depositor), 0.202 (DCC) 
• R-Value Work:  0.168 (Depositor), 0.166 (DCC) 
• R-Value Observed: 0.170 (Depositor) 

Space Group: C 1 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 120.614	α = 90
b = 81.554	β = 108.3
c = 70.155	γ = 90

Software Package:

Software Name	Purpose
ADSC	data collection
SOLVE	phasing
PHENIX	refinement
XDS	data reduction
SCALA	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2011-03-23 
Deposition Author(s): Petit, P., Xu, X., Chang, C., Savchenko, A., Yakunin, A.F.

Revision History  

• Version 1.0: 2011-03-23
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Version format compliance
• Version 1.2: 2018-01-24
  Changes: Structure summary
• Version 1.3: 2024-11-20
  Changes: Data collection, Database references, Derived calculations, Structure summary