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Catalysis of the reaction: S-adenosyl-L-methionine + laricitrin = S-adenosyl-L-homocysteine + syringetin. Catalysis of the transfer of a methyl group to the carboxyl group of an acceptor molecule to form a methyl ester. Catalysis of the reaction: N1,N5,N10-tris-(5-hydroxyferuloyl)spermidine + S-adenosylmethionine = N',N''-bis(5-hydroxyferuloyl)-N'''-sinapoylspermidine. Catalysis of the transfer of a methyl group to an acceptor molecule. Catalysis of the reaction: 2-octaprenyl-3-methyl-5-hydroxy-6-methoxy-1,4-benzoquinol + S-adenosyl-L-methionine = ubiquinol + S-adenosyl-L-homocysteine. Catalysis of the reaction: sterigmatocystin + S-adenosyl-L-methionine = 7-O-methylsterigmatocystin + S-adenosyl-homocysteine. Catalysis of the reaction: S-adenosyl-L-methionine + gamma-tocopherol = S-adenosyl-L-homocysteine + alpha-tocopherol. Catalysis of the reaction: 6-demethylsterigmatocystin + S-adenosyl-L-methionine = sterigmatocystin + S-adenosyl-homocysteine. Catalysis of the reaction: S-adenosyl-L-methionine + rRNA = S-adenosyl-L-homocysteine + rRNA containing 2'-O-methylcytosine. Catalysis of the reaction: S-adenosyl-L-methionine + N-acetylserotonin = S-adenosyl-L-homocysteine + melatonin (N-acetyl-5-methoxytryptamine). Catalysis of the reaction: S-adenosyl-L-methionine + protein L-glutamate = S-adenosyl-L-homocysteine + protein L-glutamate 5-methyl ester; this reaction is the methylation of peptidyl-L-glutamate to form peptidyl-L-glutamate 5-methyl ester. Catalysis of the reaction: farnesoic acid + S-adenosyl-methionine = methyl farnesoate + S-adenosyl-L-homocysteine. Catalysis of the reaction: benzoate + S-adenosyl-L-methionine = methylbenzoate + S-adenosyl-L-homocysteine. Catalysis of the reaction: S-adenosyl-L-methionine + isoeugenol = S-adenosyl-L-homocysteine + isomethyleugenol. Catalysis of the reaction: S-adenosyl-L-methionine + a catechol = S-adenosyl-L-homocysteine + a guaiacol. Catalysis of the reaction: S-adenosyl-L-methionine + vitexin 2''-O-beta-L-rhamnoside = S-adenosyl-L-homocysteine + 7-O-methylvitexin 2''-O-beta-L-rhamnoside. Catalysis of the reaction: S-adenosyl-L-methionine + rRNA = S-adenosyl-L-homocysteine + rRNA containing 2'-O-methyluridine. Catalysis of the reaction: S-adenosyl-L-methionine + a 7-hydroxyisoflavone = S-adenosyl-L-homocysteine + a 7-methoxyisoflavone. Catalysis of the reaction: S-adenosyl-L-methionine + kaempferol = S-adenosyl-L-homocysteine + kaempferide. Catalysis of the reaction: S-adenosyl-L-methionine + isoliquiritigenin = S-adenosyl-L-homocysteine + 2'-O-methylisoliquiritigenin. Catalysis of the transfer of a methyl group to the oxygen atom of an acceptor molecule. Catalysis of the reaction: S-adenosyl-L-methionine + 3,4-dihydroxy-trans-cinnamate = S-adenosyl-L-homocysteine + 3-methoxy-4-hydroxy-trans-cinnamate. Catalysis of the reaction: S-adenosyl-L-methionine + protein L-beta-aspartate = S-adenosyl-L-homocysteine + protein L-beta-aspartate methyl ester. Catalysis of the reaction: S-adenosyl-L-methionine + protein C-terminal S-farnesyl-L-cysteine = S-adenosyl-L-homocysteine + protein C-terminal S-farnesyl-L-cysteine methyl ester. Catalysis of the reaction: S-adenosyl-L-methionine + protein L-leucine = S-adenosyl-L-homocysteine + protein L-leucine methyl ester; this reaction is the methylation of peptidyl-L-leucine to form peptidyl-L-leucine methyl ester. Catalysis of the reaction: S-adenosyl-L-methionine + rRNA = S-adenosyl-L-homocysteine + rRNA containing a single residue of 2'-O-methyladenosine. Catalysis of the reaction: S-adenosyl-L-methionine + rRNA = S-adenosyl-L-homocysteine + rRNA containing 2'-O-methylguanosine. Catalysis of the reaction: S-adenosyl-L-methionine + magnesium protoporphyrin = S-adenosyl-L-homocysteine + magnesium protoporphyrin monomethyl ester. Catalysis of the transfer of a methyl group from S-adenosyl-L-methionine to the oxygen atom of a caffeoyl CoA molecule. Catalysis of the transfer of a methyl group from S-adenosyl-L-methionine to the oxygen atom of a tricaffeoyl spermidine molecule. Catalysis of the reaction: S-adenosyl-L-methionine + m7G(5')pppR-RNA = S-adenosyl-L-homocysteine + m7G(5')pppRm-RNA. R may be guanosine or adenosine. Catalysis of the transfer of a methyl group from S-adenosyl-L-methionine to the oxygen atom of a trihydroxyferuloyl spermidine molecule. Catalysis of the reaction: S-adenosyl-L-methionine + 3-demethylubiquinone-9 = S-adenosyl-L-homocysteine + ubiquinone-9. Catalysis of the reaction: S-adenosyl-L-methionine + caffeoyl-CoA = S-adenosyl-L-homocysteine + feruloyl-CoA. Catalysis of the reaction: S-adenosyl-L-methionine + myricetin = S-adenosyl-L-homocysteine + laricitrin. Catalysis of the transfer of a one-carbon group from one compound (donor) to another (acceptor).

View Gene Ontology (GO) Term

GO TERM SUMMARY

Name: O-methyltransferase activity
Acc: GO:0008171
Aspect: Molecular Function
Desc: Catalysis of the transfer of a methyl group to the oxygen atom of an acceptor molecule.
Proteins in PDR annotated with:
   This term: 51 [Search]
   Term or descendants: 138 [Search]


[geneontology.org]
INTERACTIVE GO GRAPH

GO:0008171 - O-methyltransferase activity (interactive image map)

YRC Informatics Platform - Version 3.0
Created and Maintained by: Michael Riffle