X-ray diffraction
1.7Å resolution

Crystal structure of a Conserved Protein of Unknown Function from Sulfolobus solfataricus P2

Entry authors: Tan K, Skarina T, Onopriyenko O, Savchenko A, Edwards A, Joachimiak A, Midwest Center for Structural Genomics (MCSG)

Function and Biology Details

Structure analysis Details

Assembly composition:
homo dimer (preferred)
Entry contents:
1 distinct polypeptide molecule
CRISPR system endoribonuclease Csx1 Chains: A, B
Molecule details ›
Chains: A, B
Length: 400 amino acids
Theoretical weight: 45.84 KDa
Source organism: Saccharolobus solfataricus P2
Expression system: Escherichia coli BL21
  • Canonical: Q97YD5 (Residues: 1-377; Coverage: 100%)
Gene names: SSO1389, csx1
Sequence domains: CRISPR-associated (Cas) DxTHG family
Structure domains:

Ligands and Environments

1 bound ligand:
1 modified residue:

Experiments and Validation Details

Entry percentile scores
X-ray source: APS BEAMLINE 19-BM
Spacegroup: P212121
Unit cell:
a: 78.849Å b: 84.918Å c: 108.513Å
α: 90° β: 90° γ: 90°
R R work R free
0.183 0.181 0.227
Expression system: Escherichia coli BL21