CATH Classification

Domain Context

CATH Clusters

Superfamily Vaccinia Virus protein VP39
Functional Family Ribosomal RNA small subunit methyltransferase A

Enzyme Information

2.1.1.182
16S rRNA (adenine(1518)-N(6)/adenine(1519)-N(6))-dimethyltransferase.
based on mapping to UniProt O67680
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.
-!- KsgA introduces the most highly conserved ribosomal RNA modification, the dimethylation of adenine(1518) and adenine(1519) in 16S rRNA. -!- Strains lacking the methylase are resistant to kasugamycin. -!- Formerly EC 2.1.1.48.

UniProtKB Entries (1)

O67680
RSMA_AQUAE
Aquifex aeolicus VF5
Ribosomal RNA small subunit methyltransferase A

PDB Structure

PDB 3FTC
External Links
Method X-RAY DIFFRACTION
Organism
Primary Citation
Structural Basis for Binding of RNA and Cofactor by a KsgA Methyltransferase.
Tu, C., Tropea, J.E., Austin, B.P., Court, D.L., Waugh, D.S., Ji, X.
Structure