ORENZA : a database of ORphan ENZyme Activities

ORphan ENZyme ActivitiesSorted by :
   EC number
   classes of activity
   KEGG metabolism pathway
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EC used by the NC-IUBMBSorted by :
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   KEGG metabolism pathway
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EC 2.1.1.83 is Orphan !
Common name :3,7-dimethylquercetin 4'-O-methyltransferase

Systematic name :S-adenosyl-L-methionine:5,3',4'-trihydroxy-3,7-dimethoxyflavone 4'-O-methyltransferase

Other names :4'-OMT
Flavonol 4'-O-methyltransferase
Flavonol 4'-methyltransferase
S-adenosyl-L-methionine:3',4',5-trihydroxy-3,7-dimethoxyflavone 4'-O-methyltransferase
Comments :3,7-dimethylquercetagetin can also act as acceptor. Involved with EC 2.1.1.76 quercetin 3-O-methyltransferase and EC 2.1.1.82 3-methylquercetin 7-O-methyltransferase in the methylation of quercetin to 3,7,4'-trimethylquercetin in Chrysosplenium americanum. Does not act on flavones, dihydroflavonols, or their glucosides. 3,7-dimethylquercetagetin can also act as acceptor. Involved with EC 2.1.1.76 and EC 2.1.1.82 in the methylation of quercetin to 3,7,4'-trimethylquercetin in Chrysosplenium americanum. Does not act on flavones, dihydroflavonols, or their glucosides.

Created :EC 2.1.1.83 created 1989

KEGG MAP : 00944 Flavone and flavonol biosynthesis

BRENDA organisms :Chrysosplenium americanum

Swiss-ProtNo protein sequences are associated with EC 2.1.1.83 in Swiss-Prot

TrEMBLNo protein sequences are associated with EC 2.1.1.83 in TrEMBL

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Links to other databases
NC-IUBMB, INTENZ, ENZYME, PDB, BRENDA, KEGG, BIOCYC, PubMed,NCBI-Entrez

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