| rRNA | <molecular biology> A nucleic acid found in all living cells. Plays a role in transferring information from DNA to the protein-forming system of the cell. (16 Dec 1997) |
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| rRNA (adenosine-O-2'-)methyltransferase | <enzyme> Forms 2'-o-methyladenosine; ermd protein methylates a specific residue on 23s rrna to confer macrolide-lincosamide-streptogramin b resistance; emre specifically modifies 23s rrna by n6,n6-dimethylation of a2058; has been sequenced; genbank x82668 (emrc) Registry number: EC 2.1.1.66 Synonym: rrna(adenine-2-)methyltransferase, ribosomal RNA methylase, rrna methylase, ermd gene product, ermc' gene product, 23s ribosomal RNA a1067 2'-methyltransferase, 23s rrna methylase, ermsf methyltransferase, tlra methyltransferase, thiostrepton-resistance methylase, thiostrepton-resistance-encoding gene product, tsnr gene product, erme methyltransferase, 23s ribosomal RNA a2058 methyltransferase, ermc methyltransferase, ermam methyltransferase (26 Jun 1999) |
| rrna operon | Genetic loci which direct transcription and translation of ribosomal RNA in bacterial operons. They are designated rrnb, rrnc, rrnd, etc. According to the structural position of the transcription unit in the DNA sequence. (12 Dec 1998) |
| m(2)G rRNA methyltransferase | <enzyme> 16s rrna-specific methyltransferase; forms m(2)g966; uses unmethylated 30s subunits as a substrate, but not free unmethylated 16s rrna Registry number: EC 2.1.1.- Synonym: m2g methyltransferase, m(2)g methyltransferase (26 Jun 1999) |
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| m(5)C rRNA methyltransferase | <enzyme> 16s rrna-specific methyltransferase; forms m(5)c967; uses free rrna but not 30s subunits as substrate Registry number: EC 2.1.1.- Synonym: m5c methyltransferase, m(5)c methyltransferase (26 Jun 1999) |
| 18S rRNA dimethylase | <enzyme> A member of the erm family of dimethylases; 27% identical to ksga protein; from saccharomyces cerevisiae; genbank l26480 Registry number: EC 2.1.1.- Synonym: dim1 protein, dim1 gene product (26 Jun 1999) |