PDBe 1y5w

X-ray diffraction
1.58Å resolution

tRNA-guanine Transglycosylase (TGT) in complex with 6-Amino-4-[2-(4-methylphenyl)ethyl]-1,7-dihydro-8H-imidazo[4,5-g]quinazolin-8-one

Released:

Function and Biology Details

Reaction catalysed:
Guanine(34) in tRNA + 7-aminomethyl-7-carbaguanine = 7-aminomethyl-7-carbaguanine(34) in tRNA + guanine
Biological process:
Cellular component:
  • not assigned

Structure analysis Details

Assemblies composition:
monomeric (preferred)
homo dimer
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Queuine tRNA-ribosyltransferase Chain: A
Molecule details ›
Chain: A
Length: 385 amino acids
Theoretical weight: 42.79 KDa
Source organism: Zymomonas mobilis
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: P28720 (Residues: 2-386; Coverage: 100%)
Gene names: ZMO0363, tgt
Sequence domains: Queuine tRNA-ribosyltransferase
Structure domains: Queuine tRNA-ribosyltransferase-like

Ligands and Environments

3 bound ligands:

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: RIGAKU RU300
Spacegroup: C2
Unit cell:
a: 90.92Å b: 65.25Å c: 69.97Å
α: 90° β: 95.98° γ: 90°
R-values:
R R work R free
0.158 0.157 0.196
Expression system: Escherichia coli BL21(DE3)