Loss of peroxisomal NAD kinase 3 (NADK3) affects photorespiration metabolism in Arabidopsis.

Nicotinamide adenine dinucleotides (NAD and NADP) are electron mediators involved in various metabolic pathways. NADP(H) are produced by NAD kinase (NADK) through the phosphorylation of NAD(H). The Arabidopsis NADK3 (AtNADK3) is reported to preferentially phosphorylate NADH to NADPH and is localized in the peroxisome.