2.1.1.B84 additional information IpeOMT1 does not catalyze the 7'-O-methylation of 7'-O-demethylcephaeline. IpeOMT1 shows broad substrate specificity towards the intermediates in emetine biosynthesis. IpeOMT1 dominantly catalyzes 6-O-methylation of the 6,7-dihydroxy- and 6-hydroxy-7-methoxyisoquinolines. The regional substrate specificity at the last step of emetine biosynthesis is restricted to 6'-O-methylation Carapichea ipecacuanha ? - ? 89 2.1.1.B84 additional information the enzyme is also active on 7'-O-demethylcephaeline forming cephaeline, overview Carapichea ipecacuanha ? - ? 89 2.1.1.B84 additional information substrate specificity of CiOMT2, overview Carapichea ipecacuanha ? - ? 89 2.1.1.B84 S-adenosyl-L-methionine + (R)-norprotosinomenine - Carapichea ipecacuanha S-adenosyl-L-homocysteine + ? - ? 417581 2.1.1.B84 S-adenosyl-L-methionine + (R,S)-isococlaurine - Carapichea ipecacuanha S-adenosyl-L-homocysteine + ? - ? 417582 2.1.1.B84 S-adenosyl-L-methionine + (R,S)-isoorientaline - Carapichea ipecacuanha S-adenosyl-L-homocysteine + ? - ? 417583 2.1.1.B84 S-adenosyl-L-methionine + (R,S)-norcoclaurine - Carapichea ipecacuanha S-adenosyl-L-homocysteine + ? - ? 417584 2.1.1.B84 S-adenosyl-L-methionine + (R,S)-protosinomenine - Carapichea ipecacuanha S-adenosyl-L-homocysteine + ? - ? 417585 2.1.1.B84 S-adenosyl-L-methionine + (S)-4'-O-methyllaudanosoline - Carapichea ipecacuanha S-adenosyl-L-homocysteine + ? - ? 417586 2.1.1.B84 S-adenosyl-L-methionine + (S)-norprotosinomenine - Carapichea ipecacuanha S-adenosyl-L-homocysteine + ? - ? 417587 2.1.1.B84 S-adenosyl-L-methionine + 1alpha-(S)-N-deacetylisoipecoside - Carapichea ipecacuanha S-adenosyl-L-homocysteine + 6-O-methyl-N-deacetylisoipecoside - ? 419557 2.1.1.B84 S-adenosyl-L-methionine + 1alpha-(S)-N-deacetylisoipecoside the iminium cation, one of the spontaneous reaction products of 6-O-methyl-N-deacetylisoipecoside aglycon, might be an intermediate of emetine biosynthesis Carapichea ipecacuanha S-adenosyl-L-homocysteine + 6-O-methyl-N-deacetylisoipecoside - ? 419557 2.1.1.B84 S-adenosyl-L-methionine + 7-O-methyl-N-deacetylisoipecoside - Carapichea ipecacuanha S-adenosyl-L-homocysteine + 6,7-O,O-dimethyl-N-deacetylisoipecoside - ? 417590 2.1.1.B84 S-adenosyl-L-methionine + cephaeline - Carapichea ipecacuanha S-adenosyl-L-homocysteine + emetine - ? 415744 2.1.1.B84 S-adenosyl-L-methionine + cephaeline the enzyme is involved in emetine biosynthesis. It does not catalyze the 7'-O-methylation of 7'-O-demethylcephaeline, the preceding step in the biosynthesis of emetine Carapichea ipecacuanha S-adenosyl-L-homocysteine + emetine - ? 415744 2.1.1.B84 S-adenosyl-L-methionine + cephaeline 6'-O-methylation Carapichea ipecacuanha S-adenosyl-L-homocysteine + emetine - ? 415744 2.1.1.B84 S-adenosyl-L-methionine + N-deacetylisoipecoside - Carapichea ipecacuanha S-adenosyl-L-homocysteine + 6-O-methyl-N-deacetylipecoside - ? 417595