adenyl nucleotide binding NADP binding molecular_function Binding to nicotinamide-adenine dinucleotide phosphate, a coenzyme involved in many redox and biosynthetic reactions; binding may be to either the oxidized form, NADP+, or the reduced form, NADPH. NADP or NADPH binding nicotinamide adenine dinucleotide phosphate binding GO:0050661 NADP+ or NADPH binding