Enzyme
Specific for quercetin. Related enzymes bring about the 3-O-methylation of other flavonols, such as galangin and kaempferol.
COMT
Enzyme
Flavone 3'-O-methyltransferase
Enzyme name
EC:2.1.1.76
Entry
Transferases;Transferring one-carbon groups;Methyltransferases
Class
S-adenosyl-L-methionine:3,5,7,3',4'-pentahydroxyflavone 3-O-methyltransferase
Sysname
S-adenosyl-L-methionine + 3,5,7,3',4'-pentahydroxyflavone = S-adenosyl-L-homocysteine + 3-methoxy-5,7,3',4'-tetrahydroxyflavone [RN:R02157]
Reaction
S-adenosyl-L-homocysteine [CPD:C00021];3-methoxy-5,7,3',4'-tetrahydroxyflavone [CPD:C04443]
Product

Species information
Apium graveolens
Species name
Apium graveolens is a species of eudicot in the family Apiaceae (carrot family).
Species info

Gene sequence info
Apium_graveolens.COMT.fa
Download
>Ag2G01247.1
MILTELPENNVVGKNRSQLDIHMMIITHGGRERTAREFQMLGKEAGFVSAKYICGADLYGAVELY
>Ag9G02881.1
MSKEDKDASDFTRALQINSGTILGMVMKAAIELDLFEIMAKAAAVNGASPFGADAKNLSSDDIVAHLPTQNPAATAMLERILRFLAANSILIRTVVAGEDGEEKSLYSLESICKNYIADEDGVSLAPLLVMLHDKVVIDSWLRLQDALIEGGIPFNKAHDGMHAFEYPATDSRFNDVFNQSMYNHTTIIIKKILEVYTGFEEITEIVDVGGGTGATIAKIISKYPQTRGINFDLPHVIKNAAPLAGVEHVGGDMFESVPKGEVIFMKWILHDWSDEHCLKLLKNCWNALPEFGKVVIVDSVVPEYTNTGSSSDLSNIMSTDMIMLALNPGGKERSLQEFEALAKQSGFVNVELICKVGIYSVLEFHKKV
>Ag10G00754.1
MASHDQEGFLTAMQIVNSSTVHGVLSALFDLNVFDIIAEKAGYDGYLHPDEIVSNLPTKNPEASDMLDRMLRLLASHSIIKCKLVKNSGNALLTRSYGLTLISQYFVQGQDGPCLVPYHRFCHHKEMQNSWYKLKDAVLEGGIPFNLAHDGANVFEYLEKDKHLASLLSQAMDKSIATSMDILLKMYKGFEGVTQVVDVGGAHGATLRCIVSLNPHVKGINFDLPHIVKDAPQLPGIDHVGGDMFVSVPKGEVVVLQRVLHDWNDEESVKILKKCHEALPDSGKVVIIDMIHSELPAKDVIAKNTSQVDIRMMVVTHGGRERTTKEFQMLGKEAGFASCKHICGADLYGVVELYKKL
MILTELPENNVVGKNRSQLDIHMMIITHGGRERTAREFQMLGKEAGFVSAKYICGADLYGAVELY
>Ag9G02881.1
MSKEDKDASDFTRALQINSGTILGMVMKAAIELDLFEIMAKAAAVNGASPFGADAKNLSSDDIVAHLPTQNPAATAMLERILRFLAANSILIRTVVAGEDGEEKSLYSLESICKNYIADEDGVSLAPLLVMLHDKVVIDSWLRLQDALIEGGIPFNKAHDGMHAFEYPATDSRFNDVFNQSMYNHTTIIIKKILEVYTGFEEITEIVDVGGGTGATIAKIISKYPQTRGINFDLPHVIKNAAPLAGVEHVGGDMFESVPKGEVIFMKWILHDWSDEHCLKLLKNCWNALPEFGKVVIVDSVVPEYTNTGSSSDLSNIMSTDMIMLALNPGGKERSLQEFEALAKQSGFVNVELICKVGIYSVLEFHKKV
>Ag10G00754.1
MASHDQEGFLTAMQIVNSSTVHGVLSALFDLNVFDIIAEKAGYDGYLHPDEIVSNLPTKNPEASDMLDRMLRLLASHSIIKCKLVKNSGNALLTRSYGLTLISQYFVQGQDGPCLVPYHRFCHHKEMQNSWYKLKDAVLEGGIPFNLAHDGANVFEYLEKDKHLASLLSQAMDKSIATSMDILLKMYKGFEGVTQVVDVGGAHGATLRCIVSLNPHVKGINFDLPHIVKDAPQLPGIDHVGGDMFVSVPKGEVVVLQRVLHDWNDEESVKILKKCHEALPDSGKVVIIDMIHSELPAKDVIAKNTSQVDIRMMVVTHGGRERTTKEFQMLGKEAGFASCKHICGADLYGVVELYKKL

Sheng jun & Dong yang Teams, Yunnan agriculture University