Escherichia coli K-12 Adenine Dinucleotide in Biosynthesis of Nicotinamide C Gene Involved in the Chromosomal Location of the

ACKNOWLEDGMENTSThis investigation was supported by Public Health Servicegrant GM-10006fromthe National Institute ofGeneral MedicalSciences. Gerald J. Tritz is a Fellow supported by Public HealthService grantCA5047fromtheNationalCancerInstitute. RobertK. Gholson is a Research Career Development Awardee, PublicHealth Service, National Institute of General Medical Science.LITERATURECITED1. Andreoli, A. J., M. Ikeda, Y. Nishizuka, and 0. Hayaishi.1963. Quinolinic acid: a precursor to nicotinamide adeninedinucleotide in Escherichia coll. Biochem. Biophys. Res.Commun. 12:92-97.2. Cox, E. C., and C. Yanofsky. 1969. Mutator gene studies inEscherichia