. "Interacting selectively and non-covalently with nicotinamide adenine dinucleotide, a coenzyme involved in many redox and biosynthetic reactions; binding may be to either the oxidized form, NAD+, or the reduced form, NADH." . . . "NAD binding" . "NAD or NADH binding" . "NAD+ or NADH binding" . "nicotinamide adenine dinucleotide binding" . . . . . .