X-ray diffraction
1.8Å resolution

The structure of the CRISPR-associated protein, Csa3, from Sulfolobus solfataricus at 1.8 angstrom resolution.


Function and Biology Details

Structure analysis Details

Assembly composition:
homo dimer (preferred)
Entry contents:
1 distinct polypeptide molecule
CRISPR locus-related putative DNA-binding protein Csa3 Chains: A, B
Molecule details ›
Chains: A, B
Length: 244 amino acids
Theoretical weight: 28.23 KDa
Source organism: Saccharolobus solfataricus P2
Expression system: Escherichia coli BL21(DE3)
  • Canonical: Q97Y88 (Residues: 1-237; Coverage: 100%)
Gene names: SSO1445, csa3
Structure domains:

Ligands and Environments

1 bound ligand:
1 modified residue:

Experiments and Validation Details

Entry percentile scores
X-ray source: SSRL BEAMLINE BL9-1
Spacegroup: P212121
Unit cell:
a: 53.426Å b: 89.853Å c: 102.577Å
α: 90° β: 90° γ: 90°
R R work R free
0.182 0.18 0.22
Expression system: Escherichia coli BL21(DE3)