4qtu

X-ray diffraction
2.12Å resolution

Structure of S. cerevisiae Bud23-Trm112 complex involved in formation of m7G1575 on 18S rRNA (SAM bound form)

Released:

Function and Biology Details

Reaction catalysed:
S-adenosyl-L-methionine + guanine(1575) in 18S rRNA = S-adenosyl-L-homocysteine + N(7)-methylguanine(1575) in 18S rRNA

Structure analysis Details

Assembly composition:
hetero dimer (preferred)
PDBe Complex ID:
PDB-CPX-150525 (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
Multifunctional methyltransferase subunit TRM112 Chains: A, C
Molecule details ›
Chains: A, C
Length: 135 amino acids
Theoretical weight: 15.08 KDa
Source organism: Saccharomyces cerevisiae S288C
Expression system: Escherichia coli
UniProt:
  • Canonical: P53738 (Residues: 1-135; Coverage: 100%)
Gene names: N3445, TRM112, YNR046W
Sequence domains: Trm112p-like protein
Structure domains: N-terminal domain of TfIIb
18S rRNA (guanine(1575)-N(7))-methyltransferase Chains: B, D
Molecule details ›
Chains: B, D
Length: 208 amino acids
Theoretical weight: 23.05 KDa
Source organism: Saccharomyces cerevisiae S288C
Expression system: Escherichia coli
UniProt:
  • Canonical: P25627 (Residues: 1-202; Coverage: 74%)
Gene names: BUD23, YCR047C, YCR47C
Sequence domains: Methyltransferase domain
Structure domains: Vaccinia Virus protein VP39

Ligands and Environments


Cofactor: Ligand SAM 2 x SAM
2 bound ligands:
1 modified residue:

Experiments and Validation Details

Entry percentile scores
X-ray source: SOLEIL BEAMLINE PROXIMA 1
Spacegroup: P21
Unit cell:
a: 75.472Å b: 53.733Å c: 85.205Å
α: 90° β: 94.55° γ: 90°
R-values:
R R work R free
0.181 0.178 0.229
Expression system: Escherichia coli