rRNA methyltransferase 2, mitochondrial

UniProtKB accession:  Q9UI43

Grouped By:  Matching UniProtKB accession

UniProtKB description:  S-adenosyl-L-methionine-dependent 2'-O-ribose methyltransferase that catalyzes the formation of 2'-O-methyluridine at position 1369 (Um1369) in the 16S mitochondrial large subunit ribosomal RNA (mtLSU rRNA), a universally conserved modification in the peptidyl transferase domain of the mtLSU rRNA (PubMed:25009282, PubMed:25074936, PubMed:35177605). This activity may require prior 2'-O-methylguanosine modification at position 1370 (Gm1370) by MRM3 (PubMed:35177605). Essential for late-stage assembly of mtLSU required for efficient translation of mitochondrial DNA encoded proteins; methyltransferase activity is not required for this function (PubMed:35177605). Essential for mitochondrial respiratory function (PubMed:35177605).