PDBe 1p0b

X-ray diffraction
1.7Å resolution

Crystal Structure Of tRNA-Guanine Transglycosylase (TGT) From Zymomonas mobilis Complexed With Archaeosine Precursor, Preq0


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
Queuine tRNA-ribosyltransferase Chain: A
Molecule details ›
Chain: A
Length: 386 amino acids
Theoretical weight: 42.93 KDa
Source organism: Zymomonas mobilis
Expression system: Escherichia coli BL21(DE3)
  • 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

2 bound ligands:

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: RIGAKU RU300
Spacegroup: C2
Unit cell:
a: 90.62Å b: 65.54Å c: 70.33Å
α: 90° β: 96.46° γ: 90°
R R work R free
0.176 0.176 0.2
Expression system: Escherichia coli BL21(DE3)