X-ray diffraction
3.01Å resolution

Crystal structure of human tRNAHis guanylyltransferase (Thg1)- Native II


Function and Biology Details

Reaction catalysed:
(1a) p-tRNA(His) + ATP = A-Ppp-tRNA(His) + diphosphate
Biochemical function:
Biological process:
Cellular component:

Structure analysis Details

Assembly composition:
homo tetramer (preferred)
Entry contents:
1 distinct polypeptide molecule
Probable tRNA(His) guanylyltransferase Chains: A, B
Molecule details ›
Chains: A, B
Length: 269 amino acids
Theoretical weight: 31.63 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli BL21(DE3)
  • Canonical: Q9NWX6 (Residues: 30-298; Coverage: 90%)
Gene names: ICF45, THG1L
Sequence domains:
Structure domains: Alpha-Beta Plaits

Ligands and Environments

No bound ligands
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: APS BEAMLINE 23-ID-B
Spacegroup: P3112
Unit cell:
a: 116.678Å b: 116.678Å c: 104.95Å
α: 90° β: 90° γ: 120°
R R work R free
0.257 0.257 0.278
Expression system: Escherichia coli BL21(DE3)