. "\"Catalysis of the reaction: (R)-3-hydroxybutanoate + NAD(+) = acetoacetate + H(+) + NADH.\" [EC:1.1.1.30, RHEA:20524]" . . "3-hydroxybutyrate dehydrogenase activity" . "D-beta-hydroxybutyrate dehydrogenase activity" . "EC:1.1.1.30" . "KEGG:R01361" . "MetaCyc:3-HYDROXYBUTYRATE-DEHYDROGENASE-RXN" . "Reactome:REACT_100598 \"acetoacetic acid + NADH + H+ <=> beta-hydroxybutyrate + NAD+, Taeniopygia guttata\"" . "Reactome:REACT_100701 \"acetoacetic acid + NADH + H+ <=> beta-hydroxybutyrate + NAD+, Gallus gallus\"" . "Reactome:REACT_101716 \"D-beta hydroxybutyrate+NAD+ <=> acetoacetate+NADH+H+, Escherichia coli\"" . "Reactome:REACT_103885 \"acetoacetic acid + NADH + H+ <=> beta-hydroxybutyrate + NAD+, Canis familiaris\"" . "Reactome:REACT_104408 \"acetoacetic acid + NADH + H+ <=> beta-hydroxybutyrate + NAD+, Sus scrofa\"" . "Reactome:REACT_108608 \"acetoacetic acid + NADH + H+ <=> beta-hydroxybutyrate + NAD+, Danio rerio\"" . "Reactome:REACT_110558 \"D-beta hydroxybutyrate+NAD+ <=> acetoacetate+NADH+H+, Taeniopygia guttata\"" . "Reactome:REACT_1493 \"D-beta hydroxybutyrate+NAD+ <=> acetoacetate+NADH+H+, Homo sapiens\"" . "Reactome:REACT_31121 \"acetoacetic acid + NADH + H+ <=> beta-hydroxybutyrate + NAD+, Bos taurus\"" . "Reactome:REACT_31745 \"D-beta hydroxybutyrate+NAD+ <=> acetoacetate+NADH+H+, Mus musculus\"" . "Reactome:REACT_32814 \"acetoacetic acid + NADH + H+ <=> beta-hydroxybutyrate + NAD+, Rattus norvegicus\"" . "Reactome:REACT_631 \"acetoacetic acid + NADH + H+ <=> beta-hydroxybutyrate + NAD+, Homo sapiens\"" . "Reactome:REACT_81074 \"acetoacetic acid + NADH + H+ <=> beta-hydroxybutyrate + NAD+, Mus musculus\"" . "Reactome:REACT_84906 \"D-beta hydroxybutyrate+NAD+ <=> acetoacetate+NADH+H+, Sus scrofa\"" . "Reactome:REACT_85059 \"acetoacetic acid + NADH + H+ <=> beta-hydroxybutyrate + NAD+, Xenopus tropicalis\"" . "Reactome:REACT_87253 \"D-beta hydroxybutyrate+NAD+ <=> acetoacetate+NADH+H+, Bos taurus\"" . "Reactome:REACT_87733 \"D-beta hydroxybutyrate+NAD+ <=> acetoacetate+NADH+H+, Gallus gallus\"" . "Reactome:REACT_89789 \"acetoacetic acid + NADH + H+ <=> beta-hydroxybutyrate + NAD+, Escherichia coli\"" . "Reactome:REACT_90360 \"D-beta hydroxybutyrate+NAD+ <=> acetoacetate+NADH+H+, Xenopus tropicalis\"" . "Reactome:REACT_91670 \"D-beta hydroxybutyrate+NAD+ <=> acetoacetate+NADH+H+, Rattus norvegicus\"" . "Reactome:REACT_95508 \"D-beta hydroxybutyrate+NAD+ <=> acetoacetate+NADH+H+, Canis familiaris\"" . "Reactome:REACT_97547 \"D-beta hydroxybutyrate+NAD+ <=> acetoacetate+NADH+H+, Danio rerio\"" . "RHEA:20524" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .