PDBe 2y9h

X-ray diffraction
2.5Å resolution

Structure A of CRISPR endoribonuclease Cse3 bound to 19 nt RNA


Function and Biology Details

Biochemical function:
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
hetero dimer (preferred)
Entry contents:
1 distinct polypeptide molecule
1 distinct RNA molecule
Macromolecules (2 distinct):
CRISPR-associated endoribonuclease Cse3 Chains: A, C, E, G, I, K, M, O
Molecule details ›
Chains: A, C, E, G, I, K, M, O
Length: 215 amino acids
Theoretical weight: 24.05 KDa
Source organism: Thermus thermophilus HB8
Expression system: Escherichia coli BL21(DE3)
  • Canonical: Q53WG9 (Residues: 1-211; Coverage: 100%)
Gene names: TTHB192, cas6, cse3
Sequence domains: CRISPR associated protein
Structure domains:
5'-R(*UP*CP*CP*CP*CP*AP*CP*GP*CP*GP*UP*GP*UP*GP *GP*GP*DGP*AP*UP)-3' Chains: B, D, F, H, J, L, N, P
Molecule details ›
Chains: B, D, F, H, J, L, N, P
Length: 19 nucleotides
Theoretical weight: 6.07 KDa
Source organism: Synthetic construct
Expression system: Not provided

Ligands and Environments

No bound ligands

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ALS BEAMLINE 8.2.1
Spacegroup: P21
Unit cell:
a: 85.86Å b: 149.81Å c: 87.26Å
α: 90° β: 94.6° γ: 90°
R R work R free
0.232 0.23 0.29
Expression systems:
  • Escherichia coli BL21(DE3)
  • Not provided