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pubmed:abstractText |
Ribosomes from Streptomyces griseofuscus expressing tlrA, a resistance gene isolated from the tylosin producer Streptomyces fradiae, are resistant to macrolide and lincosamide antibiotics in vitro. The tlrA product was found to be a methylase that introduces two methyl groups into a single base within 23S rRNA, generating N6,N6-dimethyladenine at position 2058. This activity is therefore similar to the ermE resistance mechanism in Saccharopolyspora erythraea (formerly Streptomyces erythraeus).
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