title: The stereospecificity of nicotinamide-adenine dinucleotide-dependent oxidoreductases from plants.
abstract: 1. The stereospecificity of 20 enzymes from plants is reported. 2. The stereospecificity of all known forms of malate dehydrogenase in plants and animals has been shown to be A-specific. 3. The generalization that ;the stereospecificity of a particular reaction is independent of the source of the enzyme' is confirmed for a total of 12 plant enzymes. 4. A new generalization is proposed: ;When a metabolic sequence involves consecutive nicotinamide-adenine dinucleotide-dependent reactions, the dehydrogenases have the same stereospecificity.'
mesh_terms: D000429:Alcohol Oxidoreductases; D005969:Glutamate Dehydrogenase; D005980:Glutathione Reductase; D007521:Isocitrate Dehydrogenase; D007770:L-Lactate Dehydrogenase; D008291:Malate Dehydrogenase; D009243:NAD; D009249:NADP; D010088:Oxidoreductases; D010944:Plants / Q000201:enzymology*; D013237:Stereoisomerism; D013329:Structure-Activity Relationship; D014316:Tritium
chemical_list: D009243:NAD; D014316:Tritium; D009249:NADP; D010088:Oxidoreductases; D000429:Alcohol Oxidoreductases; D007770:L-Lactate Dehydrogenase; D008291:Malate Dehydrogenase; D007521:Isocitrate Dehydrogenase; D005969:Glutamate Dehydrogenase; D005980:Glutathione Reductase