PDBe 5i07

X-ray diffraction
1.89Å resolution

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

Released:
Entry authors: Ehrmann FR, Nguyen D, Heine A, Klebe G

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

Assembly composition:
homo dimer (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Queuine tRNA-ribosyltransferase Chains: A, B
Molecule details ›
Chains: A, B
Length: 386 amino acids
Theoretical weight: 42.93 KDa
Source organism: Zymomonas mobilis subsp. mobilis ZM4 = ATCC 31821
Expression system: Escherichia coli
UniProt:
  • Canonical: P28720 (Residues: 1-386; Coverage: 100%)
Gene names: ZMO0363, tgt
Sequence domains: Queuine tRNA-ribosyltransferase
Structure domains: Queuine tRNA-ribosyltransferase-like

Ligands and Environments


No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: PETRA III, EMBL c/o DESY BEAMLINE P14 (MX2)
Spacegroup: P21
Unit cell:
a: 69.133Å b: 78.854Å c: 85.171Å
α: 90° β: 108.99° γ: 90°
R-values:
R R work R free
0.193 0.191 0.22
Expression system: Escherichia coli