3tqs

X-ray diffraction
1.98Å resolution

Structure of the dimethyladenosine transferase (ksgA) from Coxiella burnetii

Released:

Function and Biology Details

Reaction catalysed:
4 S-adenosyl-L-methionine + adenine(1518)/adenine(1519) in 16S rRNA = 4 S-adenosyl-L-homocysteine + N(6)-dimethyladenine(1518)/N(6)-dimethyladenine(1519) in 16S rRNA 
Biological process:
Cellular component:

Structure analysis Details

Assembly composition:
monomeric (preferred)
PDBe Complex ID:
PDB-CPX-182896 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Ribosomal RNA small subunit methyltransferase A Chains: A, B, C, D
Molecule details ›
Chains: A, B, C, D
Length: 255 amino acids
Theoretical weight: 29.66 KDa
Source organism: Coxiella burnetii
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: Q83AC2 (Residues: 4-258; Coverage: 99%)
Gene names: CBU_1982, ksgA, rsmA
Sequence domains: Ribosomal RNA adenine dimethylase
Structure domains:

Ligands and Environments

No bound ligands
1 modified residue:

Experiments and Validation Details

Entry percentile scores
X-ray source: NSLS BEAMLINE X4C
Spacegroup: P1
Unit cell:
a: 38.007Å b: 57.895Å c: 112.938Å
α: 90° β: 90.01° γ: 104.34°
R-values:
R R work R free
0.187 0.184 0.246
Expression system: Escherichia coli BL21(DE3)