1-(beta-D-ribofuranosyl)-1,4-dihydronicotinamide + a quinone + H(+) <=> beta-nicotinamide D-riboside + a quinol
1-(beta-d-ribofuranosyl)-1,4-dihydronicotinamide + a quinone + h(+) <=> beta-nicotinamide d-riboside + a quinol
1-(beta-D-ribofuranosyl)-1,4-dihydronicotinamide + a quinone + H(+) <=> beta-nicotinamide D-riboside + a quinol
1-(beta-d-ribofuranosyl)-1,4-dihydronicotinamide + a quinone + h(+) <=> beta-nicotinamide d-riboside + a quinol