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| {{enzyme
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| | Name = Anthocyanidin reductase
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| | EC_number = 1.3.1.77
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| | CAS_number = 93389-48-1
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| | IUBMB_EC_number = 1/3/1/77
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| | GO_code =
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| In [[enzymology]], an '''anthocyanidin reductase''' ({{EC number|1.3.1.77}}) is an [[enzyme]] that [[catalysis|catalyzes]] the [[chemical reaction]]
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| :a flavan-3-ol + 2 NAD(P)+ <math>\rightleftharpoons</math> an anthocyanidin + 2 NAD(P)H + H<sup>+</sup>
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| The 3 [[substrate (biochemistry)|substrates]] of this enzyme are [[flavan-3-ol]], [[nicotinamide adenine dinucleotide|NAD<sup>+</sup>]], and [[nicotinamide adenine dinucleotide phosphate|NADP<sup>+</sup>]], whereas its 4 [[product (chemistry)|products]] are [[anthocyanidin]], [[nicotinamide adenine dinucleotide|NADH]], [[nicotinamide adenine dinucleotide phosphate|NADPH]], and [[hydrogen ion|H<sup>+</sup>]].
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| This enzyme belongs to the family of [[oxidoreductase]]s, specifically those acting on the CH-CH group of donor with NAD+ or NADP+ as acceptor. The systematic name of this enzyme class is '''flavan-3-ol:NAD(P)+ oxidoreductase'''. Other names in common use include '''AtANR''', and '''MtANR'''. This enzyme participates in [[flavonoid biosynthesis]].
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| == References ==
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| {{reflist|1}}
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| * {{cite journal | author = Xie DY, Sharma SB, Paiva NL, Ferreira D, Dixon RA | date = 2003 | title = Role of anthocyanidin reductase, encoded by BANYULS in plant flavonoid biosynthesis | journal = Science. | volume = 299 | pages = 396–399 | pmid = 12532018 | doi = 10.1126/science.1078540 | issue = 5605 }}
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| * {{cite journal | author = Xie DY, Sharma SB, Dixon RA | date = 2004 | title = Anthocyanidin reductases from Medicago truncatula and Arabidopsis thaliana | journal = Arch. Biochem. Biophys. | volume = 422 | pages = 91–102 | pmid = 14725861 | doi = 10.1016/j.abb.2003.12.011 | issue = 1 }}
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| {{1.3-enzyme-stub}}
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| [[Category:EC 1.3.1]]
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| [[Category:NADPH-dependent enzymes]]
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| [[Category:NADH-dependent enzymes]]
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| [[Category:Enzymes of unknown structure]]
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| [[Category:Flavanols metabolism]]
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| [[Category:Anthocyanins metabolism]]
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