title: A direct spectrophotometric assay for pyruvate kinase.
mesh_terms: D002021:Buffers; D055598:Chemical Phenomena; D002621:Chemistry; D006863:Hydrogen-Ion Concentration; D007202:Indicators and Reagents; D007770:L-Lactate Dehydrogenase; D009243:NAD; D010758:Phosphorus; D011770:Pyruvate Kinase / Q000032:analysis*; D011773:Pyruvates; D013053:Spectrophotometry; D014325:Tromethamine
chemical_list: D002021:Buffers; D007202:Indicators and Reagents; D011773:Pyruvates; D014325:Tromethamine; D009243:NAD; D010758:Phosphorus; D007770:L-Lactate Dehydrogenase; D011770:Pyruvate Kinase