The Enzyme Database

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Accepted name: 23S rRNA (guanosine2251-2′-O)-methyltransferase
Reaction: S-adenosyl-L-methionine + guanosine2251 in 23S rRNA = S-adenosyl-L-homocysteine + 2′-O-methylguanosine2251 in 23S rRNA
Other name(s): rlmB (gene name); yifH (gene name)
Systematic name: S-adenosyl-L-methionine:23S rRNA (guanosine2251-2′-O-)-methyltransferase
Comments: The enzyme catalyses the methylation of guanosine2251, a modification conserved in the peptidyltransferase domain of 23S rRNA.
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc
1.  Lovgren, J.M. and Wikstrom, P.M. The rlmB gene is essential for formation of Gm2251 in 23S rRNA but not for ribosome maturation in Escherichia coli. J. Bacteriol. 183 (2001) 6957–6960. [PMID: 11698387]
2.  Michel, G., Sauve, V., Larocque, R., Li, Y., Matte, A. and Cygler, M. The structure of the RlmB 23S rRNA methyltransferase reveals a new methyltransferase fold with a unique knot. Structure 10 (2002) 1303–1315. [PMID: 12377117]
[EC created 2010]

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