Term Name: methyltransferase activity
Synonyms: methylase
Definition: Catalysis of the transfer of a methyl group to an acceptor molecule.
Ontology: GO: Molecular Function [GO:0008168]    QuickGO    AmiGO

Relationships
is a type of: transferase activity, transferring one-carbon groups
has subtype: (R,S)-reticuline 7-O-methyltransferase activity 2,7,4'-trihydroxyisoflavanone-4'-O-methyltransferase activity 2-methyl-6-geranylgeranyl-1,4-benzoquinol methyltransferase activity 2-polyprenyl-6-hydroxyphenol methylase activity 3',4',5'-trimethylmyricetin 3-O-methyltransferase activity 3',4',5'-trimethylmyricetin 7-O-methyltransferase activity 3-aminomethylindole N-methyltransferase activity 3-methylquercetin 3'-O-methyltransferase activity 4-hydroxytryptamine 4-phosphate methyltransferase activity 5,10-methylenetetrahydrofolate-dependent methyltransferase activity 5-methyl-5,6,7,8-tetrahydromethanopterin-dependent methyltransferase activity 5-methyl-phenazine-1-carboxylate N-methyltransferase activity 5-methyltetrahydrofolate-dependent methyltransferase activity 5-methyltetrahydropteroyltri-L-glutamate-dependent methyltransferase activity 5-n-alk(en)ylresorcinol O-methyltransferase activity 6a-hydroxymaackiain-3-O-methyltransferase activity 8-demethylnovobiocic acid C8-methyltransferase activity [methyl-Co(III) methanol-specific corrinoid protein]:coenzyme M methyltransferase [methyl-Co(III) methylamine-specific corrinoid protein]:coenzyme M methyltransferase activity apigenin 7-O-methyltransferase activity C-methyltransferase activity caffeine synthase activity cirsimaritin 4'-O-methyltransferase activity cobalt-factor II C20-methyltransferase activity cobalt-precorrin-3 C17-methyltransferase activity cobalt-precorrin-5B C1-methyltransferase activity cobalt-precorrin-6B C5-methyltransferase activity cobalt-precorrin-7 C15-methyltransferase activity corydaline synthase activity daphnetin-8-O-methyltransferase activity demethylmenaquinone methyltransferase activity demethylrebeccamycin--D-glucose O-methyltransferase activity dimethyl selenide methyltransferase activity dimethylamine methyltransferase activity DNA-methyltransferase activity eriodictyol 3'-O-methyltransferase activity eriodictyol 4'-O-methyltransferase activity erythromycin 3''-o-methyltransferase activity flavanone 4'-O-methyltransferase activity genkwanin 4'-O-methyltransferase activity gibberellin A4 carboxyl methyltransferase activity gibberellin A9 carboxyl methyltransferase activity hydrogen selenide methyltransferase activity hydroxyneurosporene-O-methyltransferase activity indole acetic acid carboxyl methyltransferase activity indole-3-acetate carboxyl methyltransferase activity isorhamnetin 3-O-methyltransferase activity kaempferide 3-O-methyltransferase activity kaempferide 7-O-methyltransferase activity kaempferol 3-O-methyltransferase activity ladanein 6-O-methyltransferase activity malonyl-CoA methyltransferase activity methaneselenol methyltransferase activity methanol-5-hydroxybenzimidazolylcobamide Co-methyltransferase activity methyltetrahydrofolate:corrinoid/iron-sulfur protein methyltransferase activity methylthiol:coenzyme M methyltransferase activity monomethylamine methyltransferase activity mycinamicin VI 2''-O-methyltransferase activity myricetin 7-O-methyltransferase activity N-methyltransferase activity naringenin 7-O-methyltransferase activity O-methyltransferase activity P-methyltransferase activity precorrin-6A synthase (deacetylating) activity protein methyltransferase activity protein-(glutamine-N5) methyltransferase activity quercetin 7-O-methyltransferase activity resveratrol 3,5-O-dimethyltransferase activity rhamnetin 3'-O-methyltransferase activity rhamnetin 3-O-methyltransferase activity rhamnetin 4'-O-methyltransferase activity RNA methyltransferase activity S-adenosyl-L-methionine:(S)-corytuberine-N-methyltransferase activity S-adenosylmethionine-dependent methyltransferase activity S-methyltransferase activity scutellarein 7-methyl ether 4'-O-methyltransferase activity scutellarein 7-methyl ether 6-O-methyltransferase activity Se-methyltransferase activity selenol Se-methyltransferase activity syringetin 3-O-methyltransferase activity syringetin 7-O-methyltransferase activity thiocyanate methyltransferase activity TRIBOA-glucoside methyltransferase activity tricaffeoyl spermidine O-methyltransferase activity tricetin O-methytransferase activity trimethylamine methyltransferase activity
inverse has_part: methyl transfer-driven active transmembrane transporter activity
positively regulated by: tRNA methyltransferase activator activity
regulated by: methyltransferase regulator activity