Enzyme
The enzyme catalyses the synthesis of catechin, catechin-4beta-ol (leucocyanidin) and the related flavan-3-ols afzelechin and gallocatechin, which are initiating monomers in the synthesis of plant polymeric proanthocyanidins or condensed tannins. While 2,3-trans-3,4-cis-leucocyanidin is the preferred flavan-3,4-diol substrate, 2,3-trans-3,4-cis-leucodelphinidin and 2,3-trans-3,4-cis-leucopelargonidin can also act as substrates, but more slowly. NADH can replace NADPH but is oxidized more slowly.
LAR1
Enzyme
Leucoanthocyanidin reductase
Enzyme name
EC:1.17.1.3
Entry
Oxidoreductases;Acting on CH or CH2 groups;With NAD+ or NADP+ as acceptor
Class
(2R,3S)-catechin:NADP+ 4-oxidoreductase
Sysname
(2R,3S)-catechin + NADP+ + H2O = 2,3-trans-3,4-cis-leucocyanidin + NADPH + H+ [RN:R06532]
Reaction
2,3-trans-3,4-cis-leucocyanidin [CPD:C05906];NADPH [CPD:C00005];H+ [CPD:C00080]
Product
Species information
Acer yangbiense
Species name
Acer yangbiense is a species of eudicot in the family Sapindaceae (soapberry family).Acer yangbiense is a newly described critically endangered endemic maple tree confined to Yangbi County in Yunnan Province in Southwest China. It was included in a programme for rescuing the most threatened species in China, focusing on plant species with extremely small populations (PSESP).
Species info
Gene sequence info
Acer_yangbiense.LAR1.fa
Download
>Acyan08G0115600.1
MFLKWLVMFIGGFVYKKKQKKMTVAAAVSSPKSRVLIVGATGFIGQFVTEASVESGRPTYVLVRSVTTSTAGSPSKSKVIKELQDKGATILYGSISDKELMEKILREHEIDIVISAVGGVKILDQLPLVEAIKAVGTVKRFLPSEFGHDVVRADPVEPGLRMYNEKRSVRRLIEELGVPYTYICCNSIASWPYYDNHHPSQVLPPLDHFQIYGDGTVKAYFVAGSDIGKFTMRTVDDMRAENKSVHFRPSSNYYNINELASLWENKIGRTLPRITVTENHLLAAAAENRIPQSIVASFTHDIFIRGCQINFTIDGPHDIEVTDLYPDEPFRSLDDCFNDFALKLNHNSTLADPITSSLFNAATCA
>Acyan11G0142700.1
MVNESAANMIIGPSPHVSVDGPVLIIGSTGFIGRFITDACLDSGRPTYLLIRSGLTGHFKATIINSFQEKGAIILHGSMDDRDIVEKVLRERKIEIVISAVGGKNILDQLILVQAIKAVGTIKRFLASEFGHDIDRADPVEPGLTMYNEKRKVRRAIEKAGIPYTYICCNSIAAWPYHDNTHPADVLPPLDRFHIYGDGTVKGIFSTFFFFFLSFFKFSTLGGGSTGLAYFVAGTDIGKYTIKSMDDIRTVNKSVHFRPPSNFLNINELASLWEQKIDRTLPRVTITEDDLLHAAREMRIPESIVASFTHDIFIKGCQINFSIEEPEDVDLSSLYPDARFMTIDECFNDFVRNLVENPKLFKQASGNNNGSIIMPPTNQEALVAIATYT
MFLKWLVMFIGGFVYKKKQKKMTVAAAVSSPKSRVLIVGATGFIGQFVTEASVESGRPTYVLVRSVTTSTAGSPSKSKVIKELQDKGATILYGSISDKELMEKILREHEIDIVISAVGGVKILDQLPLVEAIKAVGTVKRFLPSEFGHDVVRADPVEPGLRMYNEKRSVRRLIEELGVPYTYICCNSIASWPYYDNHHPSQVLPPLDHFQIYGDGTVKAYFVAGSDIGKFTMRTVDDMRAENKSVHFRPSSNYYNINELASLWENKIGRTLPRITVTENHLLAAAAENRIPQSIVASFTHDIFIRGCQINFTIDGPHDIEVTDLYPDEPFRSLDDCFNDFALKLNHNSTLADPITSSLFNAATCA
>Acyan11G0142700.1
MVNESAANMIIGPSPHVSVDGPVLIIGSTGFIGRFITDACLDSGRPTYLLIRSGLTGHFKATIINSFQEKGAIILHGSMDDRDIVEKVLRERKIEIVISAVGGKNILDQLILVQAIKAVGTIKRFLASEFGHDIDRADPVEPGLTMYNEKRKVRRAIEKAGIPYTYICCNSIAAWPYHDNTHPADVLPPLDRFHIYGDGTVKGIFSTFFFFFLSFFKFSTLGGGSTGLAYFVAGTDIGKYTIKSMDDIRTVNKSVHFRPPSNFLNINELASLWEQKIDRTLPRVTITEDDLLHAAREMRIPESIVASFTHDIFIKGCQINFSIEEPEDVDLSSLYPDARFMTIDECFNDFVRNLVENPKLFKQASGNNNGSIIMPPTNQEALVAIATYT
Sheng jun & Dong yang Teams, Yunnan agriculture University