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

Eriobotrya japonica

Species name

Loquat (Rhaphiolepis bibas) is a species of eudicot in the family Rosaceae (rose family).

Species info

Gene sequence info

Eriobotrya_japonica.LAR1.fa

Download
>EVM0033442.1
MLGHGEETPSRFELLSMVKKHSSLLGKTVIVADEDDTSDVELDHRFWHDMLDLYFVHGKDSRGRQDDDLVFFVRKLSYYGYGFNDGKEGVSPYFVRRWAHKLDDLIGESNVDVDWRRSFYLNLIAHTSFTVTVAICSHQDLRNHQAEQGIPLCPIYKVVKTVYASPSRVNFQLDSKKEVETTPAYPDICFAINDFDSTFDAVVLTETDHCYCVILNAHDGAAFPRVKESDECSSSDSSSLRIETNSAKTKNTKLTLFSGFVSYQMVRDAYDAGKSRFGNLLGHSPGKTDKLYMKGPGGRGEVEVAVSGVADQSQQDLGPFSPVISKTGFGIGSIVRKAASVASVAAKNAYAAASSTHSFDDEMVPLKCCLMSISLPWEQIAYDLLLKGTPPVTL
>EVM0021314.1
MTVSSSLSVAKNGRVLIVGATGFIGRFVAEASLAAGQPTYVLVRPGPLHPSKADTVKSFKDKGAIILHGLISDKTLMEKMVREHEIEIVISAVGGATILDQITLVEAIAAVGTVKRFLPSEFGHDVDRAHPVEPGLTMYLEKRKVRRSVEKSGVPYTYICCNSIASWPYFDNTHPSEVLPPLDRFQIYGDGTVKAYFVDGNDIGKFTMKTVDDIRTINKNVHFRPPSNLYDINGLASLWEKKIGRTLPRVTITEDHLLALAAENRIPESIVASFTHDIFIKGCQVNFAVEGPHDVEVGTLYPGDSFRTLDECFDDFLLKLKDNLELELLQEEEDQKVSTENTVVESRTVTATCA
>EVM0006836.1
MTVSPSLSVARNGRVLIVGATGFIGRFVSEASLAAGQHTYVLVRPGPLHPSKADTVKSFKHKGAIILHGLISDKTLMEKILREHEIETVISAVGGATILDQIALVEAIAAVGTVKRFLPSEFGHDVDRADPVEPGLTMYVEKRRVRRWVEKSGVPYTYICCNSIASWPYFDNTHPSEVLPPLDRFQIYGDGTVKAYFVDGTDIGKFTIKTVNDVRTINKNVHFRPPSNLYDINGLASLWEKKIGRSLPRTTITENHLLALAAENRIPESIVASFTHDIFIKGCQVNFAVEGPRDVEVGTLYPGDSFRTLDECFNDFLLKLKDNLELVQEEKDQKASTKNAVVESRAVTPTCA
>EVM0040780.1
MCGTTTGNVSEIAKHRTLIIGSTGFIGRFVAEASLHSGHPTYLLVRPGSVVGSSKSTTTIGYLQERGAIVITGSIDDQDSTEKVLKEHKIEVVVSVVGGARILDQLILLEAIKAVGTVKRFLPSEFGHDIDRAGPVEPGLTMYNEKRKVRRATEAAGIPYTYICCNSIAGWPYHDNIHPADVLPPLDRFHIYGDGTVKAYFVTGSDIGKFTMKTIGDVRTVNKSVHFRPQCNLLNINQLASLWEKSIGRTLPRLTVTEDDLLSAAKEMIIPQSIVASFTHDIFIKGCQVNYDIENPNDIEVCSLYPDTPFQTVEECFKDFATKVVIVNVPKVAEKPKSNDFIVVPNAKPEALVVAPASA
>EVM0014404.1
MLGHGEDTPSRFELLSMVKKHSSLLGKTVIVADEDDTSDVELDHRFWHDVLDLYFVRGKDSRGRQDDDLVFFVRKLSSYGYGFNDGKEGVSPYFVRRWAAKLDDLIGESNVDVDWRRSFYLNLIAHTSFTVTVAICSHQDLRNHQAEQGIPLSPIYKVVKTVYASPSRVNFQLDSKKEVETTPAYPDICFAIDDFDSTFDAVVLTETDHCYCVILNAHDGAAFPREKESNDCSSSDSSSLRVETNSAKMKNTKLTLFSGFVSYQMVRDAYDAGKSRFGNLLGHSPRKTDKLYMKGPGGRGEVEVAVSGVADQSQLDAGPFSPVISKRGFGIGSIVRKAASVASVAAKNAYAAASSTHSFDDEMVPLKCCLMSISLPWEQIAYDLLFKGTPPVTL

Gene tree

Gene tree

Sheng jun & Dong yang Teams, Yunnan agriculture University