The Enzyme Database

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Accepted name: toxoflavin synthase
Reaction: (1) S-adenosyl-L-methionine + 1,6-didemethyltoxoflavin = S-adenosyl-L-homocysteine + reumycin
(2) S-adenosyl-L-methionine + reumycin = S-adenosyl-L-homocysteine + toxoflavin
Glossary: reumycin = 1-demethyltoxoflavin
toxoflavin = 1,6-dimethylpyrimido[5,4-e][1,2,4]triazine-5,7(1H,6H)-dione
Other name(s): toxA (gene name)
Systematic name: S-adenosyl-L-methionine:1,6-didemethyltoxoflavin N1,N6-dimethyltransferase (toxoflavin-forming)
Comments: The enzyme is a dual-specificity methyltransferase that catalyses the last two steps of toxoflavin biosynthesis. Toxoflavin is a major virulence factor of several bacterial crop pathogens.
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc
1.  Fenwick, M.K., Philmus, B., Begley, T.P. and Ealick, S.E. Burkholderia glumae ToxA Is a dual-specificity methyltransferase that catalyzes the last two steps of toxoflavin biosynthesis. Biochemistry 55 (2016) 2748–2759. [PMID: 27070241]
[EC created 2018]

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