5c0o

X-ray diffraction
2.62Å resolution

m1A58 tRNA methyltransferase mutant - Y78A

Released:

Function and Biology Details

Reaction catalysed:
S-adenosyl-L-methionine + adenine(58) in tRNA = S-adenosyl-L-homocysteine + N(1)-methyladenine(58) in tRNA
Biological process:

Structure analysis Details

Assembly composition:
homo tetramer (preferred)
PDBe Complex ID:
PDB-CPX-184486 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
tRNA (adenine(58)-N(1))-methyltransferase TrmI Chains: E, F, G, H
Molecule details ›
Chains: E, F, G, H
Length: 255 amino acids
Theoretical weight: 28.55 KDa
Source organism: Thermus thermophilus HB27
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: Q8GBB2 (Residues: 1-255; Coverage: 100%)
Gene names: TT_C0244, trmI
Sequence domains: tRNA methyltransferase complex GCD14 subunit
Structure domains: Vaccinia Virus protein VP39

Ligands and Environments


Cofactor: Ligand SAM 4 x SAM
1 bound ligand:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ESRF BEAMLINE ID23-2
Spacegroup: P212121
Unit cell:
a: 76.54Å b: 79.86Å c: 184Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.235 0.235 0.282
Expression system: Escherichia coli BL21(DE3)