23S rRNA (guanine2535-N1)-methyltransferase

23S rRNA (guanine2535-N1)-methyltransferase (EC 2.1.1.209, AviRa) is an enzyme with systematic name S-adenosyl-L-methionine:23S rRNA (guanine2535-N1)-methyltransferase.[1][2][3] This enzyme catalyses the following chemical reaction

S-adenosyl-L-methionine + guanine2535 in 23S rRNA S-adenosyl-L-homocysteine + N1-methylguanine2535 in 23S rRNA
23S rRNA (guanine2535-N1)-methyltransferase
Identifiers
EC no.2.1.1.209
Databases
IntEnzIntEnz view
BRENDABRENDA entry
ExPASyNiceZyme view
KEGGKEGG entry
MetaCycmetabolic pathway
PRIAMprofile
PDB structuresRCSB PDB PDBe PDBsum
Search
PMCarticles
PubMedarticles
NCBIproteins

This is one of the methyltransferases from Streptomyces viridochromogenes . Streptomyces viridochromogenes produces the antibiotic avilamycin A which binds to the 50S ribosomal subunit to inhibit protein synthesis.[4]

References
  1. Treede I, Jakobsen L, Kirpekar F, Vester B, Weitnauer G, Bechthold A, Douthwaite S (July 2003). "The avilamycin resistance determinants AviRa and AviRb methylate 23S rRNA at the guanosine 2535 base and the uridine 2479 ribose". Molecular Microbiology. 49 (2): 309–18. doi:10.1046/j.1365-2958.2003.03558.x. PMID 12828631.
  2. Weitnauer G, Gaisser S, Trefzer A, Stockert S, Westrich L, Quiros LM, Mendez C, Salas JA, Bechthold A (March 2001). "An ATP-binding cassette transporter and two rRNA methyltransferases are involved in resistance to avilamycin in the producer organism Streptomyces viridochromogenes Tü57". Antimicrobial Agents and Chemotherapy. 45 (3): 690–5. doi:10.1128/aac.45.3.690-695.2001. PMC 90357. PMID 11181344.
  3. Mosbacher TG, Bechthold A, Schulz GE (May 2003). "Crystal structure of the avilamycin resistance-conferring methyltransferase AviRa from Streptomyces viridochromogenes". Journal of Molecular Biology. 329 (1): 147–57. doi:10.1016/s0022-2836(03)00407-8. PMID 12742024.
  4. Krupkin M, Wekselman I, Matzov D, Eyal Z, Diskin Posner Y, Rozenberg H, Zimmerman E, Bashan A, Yonath A (November 2016). "Avilamycin and evernimicin induce structural changes in rProteins uL16 and CTC that enhance the inhibition of A-site tRNA binding". Proceedings of the National Academy of Sciences of the United States of America. 113 (44): E6796–E6805. doi:10.1073/pnas.1614297113. PMC 5098648. PMID 27791159.
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