The Enzyme Database

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Accepted name: 23S rRNA (adenine2085-N6)-dimethyltransferase
Reaction: 2 S-adenosyl-L-methionine + adenine2085 in 23S rRNA = 2 S-adenosyl-L-homocysteine + N6-dimethyladenine2085 in 23S rRNA
Other name(s): ErmC′ methyltransferase; ermC methylase; ermC 23S rRNA methyltransferase; rRNA:m6A methyltransferase ErmC′; ErmC′; rRNA methyltransferase ErmC′
Systematic name: S-adenosyl-L-methionine:23S rRNA (adenine2085-N6)-dimethyltransferase
Comments: ErmC is a methyltransferase that confers resistance to the macrolide-lincosamide-streptogramin B group of antibiotics by catalysing the methylation of 23S rRNA at adenine2085.
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc, PDB
1.  Zhong, P., Pratt, S.D., Edalji, R.P., Walter, K.A., Holzman, T.F., Shivakumar, A.G. and Katz, L. Substrate requirements for ErmC′ methyltransferase activity. J. Bacteriol. 177 (1995) 4327–4332. [DOI] [PMID: 7543473]
2.  Denoya, C. and Dubnau, D. Mono- and dimethylating activities and kinetic studies of the ermC 23 S rRNA methyltransferase. J. Biol. Chem. 264 (1989) 2615–2624. [PMID: 2492520]
3.  Denoya, C.D. and Dubnau, D. Site and substrate specificity of the ermC 23S rRNA methyltransferase. J. Bacteriol. 169 (1987) 3857–3860. [DOI] [PMID: 2440853]
4.  Bussiere, D.E., Muchmore, S.W., Dealwis, C.G., Schluckebier, G., Nienaber, V.L., Edalji, R.P., Walter, K.A., Ladror, U.S., Holzman, T.F. and Abad-Zapatero, C. Crystal structure of ErmC′, an rRNA methyltransferase which mediates antibiotic resistance in bacteria. Biochemistry 37 (1998) 7103–7112. [DOI] [PMID: 9585521]
5.  Schluckebier, G., Zhong, P., Stewart, K.D., Kavanaugh, T.J. and Abad-Zapatero, C. The 2.2 Å structure of the rRNA methyltransferase ErmC′ and its complexes with cofactor and cofactor analogs: implications for the reaction mechanism. J. Mol. Biol. 289 (1999) 277–291. [DOI] [PMID: 10366505]
6.  Maravic, G., Bujnicki, J.M., Feder, M., Pongor, S. and Flogel, M. Alanine-scanning mutagenesis of the predicted rRNA-binding domain of ErmC′ redefines the substrate-binding site and suggests a model for protein-RNA interactions. Nucleic Acids Res. 31 (2003) 4941–4949. [PMID: 12907737]
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