beta-nicotinamide D-ribonucleotide + diphosphate => 5-phospho-alpha-D-ribose 1-diphosphate + nicotinamide + H(+)
beta-nicotinamide d-ribonucleotide + diphosphate => 5-phospho-alpha-d-ribose 1-diphosphate + nicotinamide + h(+)
beta-nicotinamide D-ribonucleotide + diphosphate => 5-phospho-alpha-D-ribose 1-diphosphate + nicotinamide + H(+)
beta-nicotinamide d-ribonucleotide + diphosphate => 5-phospho-alpha-d-ribose 1-diphosphate + nicotinamide + h(+)