AO — Pisum sativum

Summary

PSAT1G057200, symbol AO (also known as PsAO, PsFIN4, or FIN4) in garden pea (Pisum sativum) on chromosome 1LG6, encodes a protein with L-aspartate oxidase activity (EC 1.4.3.16) and succinate dehydrogenase (quinone) activity, containing FAD/NAD-binding and succinate dehydrogenase/fumarate reductase-like domains. The gene is associated with nicotinamide nucleotide and NAD biosynthesis from aspartate, oxidative phosphorylation, the TCA cycle, nitrogen fixation, nodulation, seed development, and alkaloid metabolism. It localizes to the mitochondrial inner membrane and respiratory chain complex II. AO is associated with reactive oxygen species burst and stomatal immunity. Related genes in other species are linked to L-aspartate oxidase function and spider mite resistance.