› 5lpt

X-ray diffraction
2.36Å resolution

tRNA guanine Transglycosylase (TGT) in co-crystallized complex (space group P21) with 6-amino-2-(methylamino)-4-(2-((2R,3R,4S,5R,6S)-3,4,5,6-tetramethoxytetrahydro-2H-pyran-2-yl)ethyl)-1H-imidazo[4,5-g]quinazolin-8(7H)-one

Released:
DOI: 10.2210/pdb5lpt/pdb
PDB entry 5lpt coloured by chain, front view.
PDB entry 5lpt coloured by chain, side view.
PDB entry 5lpt coloured by chain, top view.
Source organism: Zymomonas mobilis subsp. mobilis ZM4 = ATCC 31821
Entry authors: Ehrmann FR, 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
Biochemical function:
Biological process:
Cellular component:
Sequence domains:

Structure analysis Details

Assembly composition:
homo dimer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-151274 (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

3 bound ligands:
Ligand ZN 2 x ZN
Ligand 726 2 x 726
Ligand GOL 3 x GOL
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: BESSY BEAMLINE 14.1
Spacegroup: P21
Unit cell:
a: 68.745Å b: 78.866Å c: 84.891Å
α: 90° β: 108.72° γ: 90°
R-values:
R R work R free
0.203 0.201 0.233
Expression system: Escherichia coli

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