Enzyme
The enzyme participates in the flavonoid biosynthesis pathway found in plants. It catalyses the double reduction of anthocyanidins, producing (2R,3R)-flavan-3-ol monomers required for the formation of proanthocyanidins. While the enzyme from the legume Medicago truncatula (MtANR) can use both NADPH and NADH as reductant, that from the crucifer Arabidopsis thaliana (AtANR) uses only NADPH. Also, while the substrate preference of MtANR is cyanidin>pelargonidin>delphinidin, the reverse preference is found with AtANR. cf. EC 1.3.1.112, anthocyanidin reductase [(2S)-flavan-3-ol-forming].
ANR
Enzyme
Anthocyanidin reductase
Enzyme name
EC:1.3.1.77
Entry
Oxidoreductases;Acting on the CH-CH group of donors;With NAD+ or NADP+ as acceptor
Class
(2R,3R)-flavan-3-ol:NAD(P)+ 3,4-oxidoreductase
Sysname
a (2R,3R)-flavan-3-ol + 2 NAD(P)+ = an anthocyanidin with a 3-hydroxy group + 2 NAD(P)H + H+ [RN:R07351 R07352]
Reaction
anthocyanidin with a 3-hydroxy group [CPD:C21381];NADH [CPD:C00004];NADPH [CPD:C00005];H+ [CPD:C00080]
Product

Species information
Antirrhinum majus
Species name
Snapdragon (Antirrhinum majus) is a species of eudicot in the family Plantaginaceae (speedwell family).
Species info

Gene sequence info
Antirrhinum_majus.ANR.fa
Download
>Am02g43330.T01
MEKGSSTVCVTGGAGYIGSSLVKKLLNEGYTVHATLRNLNDNTKVDPLKSFCGAKERLKLFEANIYKAEEFEPAIQGCEFVFHVATPLLHTEGQKHDNRIDATIDAARSIAAICVGSGTVRRLIYTASVMAASPLKEDGSGYKEFMDETCWSPLNLSIPYSNDFLLEYTSAKTLAEKELLSFNNDSAGGMEVVTLACGLVGGENPMPSISGSVLTFLSHLTNNEFAYNSLKFLEDLLAKIPIVHIEDACNAHIFCMKEESMSGRFLCANAYVSTADIANYYMKKYPEFNIKKEYLEDPKRETKWGSSLLSERGFEYKCDWQLVLDDCINSARKNGYLEL
>Am01g27940.T01
MIDPALRGTLNVLGSCAKTPSVKRVVLTYSAAAVALNGKRP
>Am02g43320.T01
MEKSSCKVCVTGGAGYIGSSLVKKLLNEGYTVHATLRNLNDNSKVEPLKNFCGAEERLKLFEANIYRAEEFEPAIQGCHFVFHVATPLLGSEGQKQQKSMADATLDAARSIAAICIRSGTVKRLIYTASVMSASPLKEDGSGYKEFMDETCWTPSNHHILHNAVFLEEYISAKSSTEKELLSLNNGGIGGMEVVTLACALVGGENPLPSVPGSVDGLLSPVTKMEFAYNSLKIIEEMLVKIPIVHIEDACDAHIFCMKEKSMSGRFLCANAYVSIEDIASYYQKKYPQFNVKKEYLQGLKRETKWGSSLLSERGFEYKCDWQLVLDDCINSARKNGYLEL
MEKGSSTVCVTGGAGYIGSSLVKKLLNEGYTVHATLRNLNDNTKVDPLKSFCGAKERLKLFEANIYKAEEFEPAIQGCEFVFHVATPLLHTEGQKHDNRIDATIDAARSIAAICVGSGTVRRLIYTASVMAASPLKEDGSGYKEFMDETCWSPLNLSIPYSNDFLLEYTSAKTLAEKELLSFNNDSAGGMEVVTLACGLVGGENPMPSISGSVLTFLSHLTNNEFAYNSLKFLEDLLAKIPIVHIEDACNAHIFCMKEESMSGRFLCANAYVSTADIANYYMKKYPEFNIKKEYLEDPKRETKWGSSLLSERGFEYKCDWQLVLDDCINSARKNGYLEL
>Am01g27940.T01
MIDPALRGTLNVLGSCAKTPSVKRVVLTYSAAAVALNGKRP
>Am02g43320.T01
MEKSSCKVCVTGGAGYIGSSLVKKLLNEGYTVHATLRNLNDNSKVEPLKNFCGAEERLKLFEANIYRAEEFEPAIQGCHFVFHVATPLLGSEGQKQQKSMADATLDAARSIAAICIRSGTVKRLIYTASVMSASPLKEDGSGYKEFMDETCWTPSNHHILHNAVFLEEYISAKSSTEKELLSLNNGGIGGMEVVTLACALVGGENPLPSVPGSVDGLLSPVTKMEFAYNSLKIIEEMLVKIPIVHIEDACDAHIFCMKEKSMSGRFLCANAYVSIEDIASYYQKKYPQFNVKKEYLQGLKRETKWGSSLLSERGFEYKCDWQLVLDDCINSARKNGYLEL

Sheng jun & Dong yang Teams, Yunnan agriculture University