SBP — Beta vulgaris subsp. vulgaris

Summary

BvSBP (BVRB_5G119620) on sugar beet chromosome 5 encodes a cupin family protein with nutrient reservoir activity, and is annotated for copper binding and IgE binding. The gene is associated with seed maturation and development, nitrogen utilization, protein oxidation, homotrimerization and hexamerization, defence responses to bacteria and fungi, and processes including flocculation, pH reduction, digestion, and killing of cells of other organisms. It is linked to protein content, and its product localizes to the protein storage vacuole, endoplasmic reticulum, membrane, and extracellular space. Studies of related genes in other species connect the family to fruit firmness, fruit size, and inflorescence branching.