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)

O67800
ERA_AQUAE
Aquifex aeolicus VF5
GTPase Era

PDB Structure

PDB 3R9X
External Links
Method X-RAY DIFFRACTION
Organism
Primary Citation
The Era GTPase recognizes the GAUCACCUCC sequence and binds helix 45 near the 3' end of 16S rRNA.
Tu, C., Zhou, X., Tarasov, S.G., Tropea, J.E., Austin, B.P., Waugh, D.S., Court, D.L., Ji, X.
Proc.Natl.Acad.Sci.USA