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EC 2.1.1.209 Details
EC number
2.1.1.209
Accepted name
23S rRNA (guanine2535-N1)-methyltransferase
Reaction
S-adenosyl-L-methionine + guanine2535 in 23S rRNA = S-adenosyl-L-homocysteine + N1-methylguanine2535 in 23S rRNA
Other name(s)
AviRa
Systematic name
S-adenosyl-L-methionine:23S rRNA (guanine2535-N1)-methyltransferase
Comment
Streptomyces viridochromogenes produces the antibiotic avilamycin A which binds to the 50S ribosomal subunit to inhibit protein synthesis. To protect itself from the antibiotic, Streptomyces viridochromogenes utilizes two methyltransferases, 23S rRNA (guanine2535-N1)-methyltransferase and EC 2.1.1.208 [23S rRNA (uridine2479-2-O)-methyltransferase], whose actions confer avilamycin resistance to the RNA.
History
created 2011
EC Tree
3.1.1.9 created 1961, deleted 1972
3.1.1.12 created 1961, deleted 1972
3.1.1.16 created 1961, deleted 1972
3.1.1.18 created 1961, deleted 1982
3.1.1.62 created 1989, deleted 1992
3.1.1.69 created 1992, deleted 2002