PDBe 1uam

X-ray diffraction
2.2Å resolution

Crystal structure of tRNA(m1G37)methyltransferase: Insight into tRNA recognition


Function and Biology Details

Reaction catalysed:
S-adenosyl-L-methionine + guanine(37) in tRNA = S-adenosyl-L-homocysteine + N(1)-methylguanine(37) in tRNA
Biochemical function:
Biological process:
Cellular component:

Structure analysis Details

Assembly composition:
homo dimer (preferred)
Entry contents:
1 distinct polypeptide molecule
tRNA (guanine-N(1)-)-methyltransferase Chain: A
Molecule details ›
Chain: A
Length: 274 amino acids
Theoretical weight: 30.82 KDa
Source organism: Haemophilus influenzae
Expression system: Escherichia coli
  • Canonical: P43912 (Residues: 1-246; Coverage: 100%)
Gene names: HI_0202, trmD
Sequence domains: tRNA (Guanine-1)-methyltransferase
Structure domains:

Ligands and Environments

2 bound ligands:

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: RIGAKU RU300
Spacegroup: R32
Unit cell:
a: 92.9Å b: 92.9Å c: 179.971Å
α: 90° β: 90° γ: 120°
R R work R free
0.22 0.22 0.264
Expression system: Escherichia coli