Studies on the de novo biosynthesis of NAD in Escherichia coli. V. Properties of the quinolinic acid synthetase system.

Aspartic Acid Carbon Isotopes Chromatography, Gel Drug Stability Escherichia coli/enzymology Hot Temperature Hydrogen-Ion Concentration Kinetics Macromolecular Substances Molecular Weight Multienzyme Complexes/analysis,isolation & purification,metabolism Mutation NAD/biosynthesis Organophosphorus Compounds Pyridines/biosynthesis Trioses

Carbon Isotopes Macromolecular Substances Multienzyme Complexes Organophosphorus Compounds Pyridines Trioses NAD Aspartic Acid quinolinic acid synthetase