| 208 | NadR, Escherichia coli | nicotinamide mononucleotide (NMN) adenylyltransferase and ribosylnicotinamide (RN) kinase activities, enzyme
ATP + nicotinamide ribonucleotide => diphosphate + NAD+
ATP + 1-(beta-D-ribofuranosyl)-nicotinamide => ADP + beta-nicotinamide D-ribonucleotide
NAD biosynthesis | Transcriptional repressor
binds to the nadB operator DNA sequence
Increasing NAD causes an increase in the affinity of NadR for the nadB operator regions of nadA, nadB, and pncB | Escherichia coli (Gram negative bacterium) |