Reaction: S-adenosyl-L-methionine + 8-demethyl-8-(2,3-di-O-methyl-α-L-rhamnosyl)tetracenomycin C = S-adenosyl-L-homocysteine + 8-demethyl-8-(2,3,4-tri-O-methyl-α-L-rhamnosyl)tetracenomycin C
For diagram of reaction click here.
Glossary: 8-demethyl-8-α-L-rhamnosyltetracenomycin C = methyl (6aR,7S,10aR)-6a,7,10a,12-tetrahydroxy-8-methoxy-1-methyl-6,10,11-trioxo-3-α-L-rhamnosyloxy-6,6a,7,10,10a,11-hexahydrotetracene-2-carboxylate
Other name(s): ElmMIII
Systematic name: S-adenosyl-L-methionine:8-demethyl-8-(2,3-di-O-methoxy-α-L-rhamnosyl)tetracenomycin-C 4'-O-methyltransferase
Comments: The enzyme from the bacterium Streptomyces olivaceus is involved in the biosynthesis of the polyketide elloramycin.
Links to other databases: BRENDA, EXPASY, KEGG, Metacyc, CAS registry number:
1. Patallo, E.P., Blanco, G., Fischer, C., Brana, A.F., Rohr, J., Mendez, C. and Salas, J.A. Deoxysugar methylation during biosynthesis of the antitumor polyketide elloramycin by Streptomyces olivaceus. Characterization of three methyltransferase genes. J. Biol. Chem. 276 (2001) 18765-18774. [PMID: 11376004]