HPR3 — Brassica juncea

Summary

BJUB02G06220S (BjHPR3, also known as HPPR3) on Indian mustard chromosome B02 encodes a D-isomer 2-hydroxyacid dehydrogenase catalytic domain-containing protein with multiple reductase activities, including (2R)-hydroxyphenylpyruvate reductase, hydroxypyruvate reductase, glyoxylate reductase, and D-lactate dehydrogenase activities, all NAD(P)H-dependent. The gene is associated with photorespiratory flux, photorespiration, photochemical efficiency, and plant growth, as well as with myelination, heat generation, angiogenesis, fat cell differentiation, fatty acid oxidation, regeneration, and lipogenesis. Its product localises to the cytosol. Studies of related genes in other species link the family to 4-hydroxyphenyllactic acid accumulation and impaired tyrosine conversion, and to plant growth and development traits.