5x89

X-ray diffraction
1.53Å resolution

The X-ray crystal structure of subunit fusion RNA splicing endonuclease from Methanopyrus kandleri

Released:

Function and Biology Details

Reaction catalysed:
PretRNA = a 3'-half-tRNA molecule with a 5'-OH end + a 5'-half-tRNA molecule with a 2',3'-cyclic phosphate end + an intron with a 2',3'-cyclic phosphate and a 5'-hydroxyl terminus
Biochemical function:
Biological process:
Cellular component:

Structure analysis Details

Assembly composition:
homo dimer (preferred)
PDBe Complex ID:
PDB-CPX-186274 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
EndA-like protein; tRNA-splicing endonuclease Chain: A
Molecule details ›
Chain: A
Length: 359 amino acids
Theoretical weight: 41.72 KDa
Source organism: Methanopyrus kandleri AV19
Expression system: Escherichia coli
UniProt:
  • Canonical: Q8TGZ5 (Residues: 2-166; Coverage: 99%)
  • Canonical: Q8TGZ7 (Residues: 2-179; Coverage: 99%)
Gene names: MK0341, MK0397, endA
Sequence domains:
Structure domains: Trna Endonuclease; Chain: A, domain 1

Ligands and Environments

1 bound ligand:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: SPRING-8 BEAMLINE BL26B2
Spacegroup: I222
Unit cell:
a: 77.674Å b: 93.059Å c: 126.109Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.16 0.158 0.196
Expression system: Escherichia coli