HPA — Beta vulgaris subsp. vulgaris

Summary

BvHPA (BVRB_1G000940) on sugar beet chromosome 1 encodes a histidinol-phosphate transaminase, a pyridoxal phosphate-dependent aminotransferase with activity toward histidinol-phosphate, prephenate, and aspartate substrates. The protein localizes to the chloroplast stroma and cytoplasm. BvHPA is associated with histidine and L-phenylalanine biosynthesis, amino acid metabolism, and sialylation. It is linked to embryo development, root meristem maintenance, root growth, male transmission, hybrid lethality, and cell death. Related genes in other species are associated with embryo viability, root meristem development, hybrid incompatibility, root thickness, and photochemical quenching.