1.2.1.65 additional information enzyme SALDH shows poor activity with NADP+ 1.2.1.65 NAD+ - 1.2.1.65 NAD+ dependent on 1.2.1.65 NAD+ amino acid residues Trp148, Phe226, Gly228, and Phe381 may bind NAD+, predicted binding mode based on modelling and molecular dynamic simulation. The adenine dinucleotide part of NAD+ is stabilized by Gly208, Glu209, Val212, Phe226, Gly228, Val232, Ile236, Glu379, and Phe381. The dinucleotide also forms a hydrogen bond with Lys172, Glu175, and Asn213. The nicotinamide of NAD+ interacts with Trp148 and Asn149 via hydrogen bond formation. Pro147, Leu251, and Gly252 contribute the binding by hydrophobic interactions. A conformational change occurred in the NAD+ binding site, which may facilitate NADH release