SBP — Lactuca sativa

Summary

LsSBP (gene symbol SBP, chromosome 9) encodes a cupin 1 domain-containing protein with nutrient reservoir activity, copper binding, and IgE binding, and is associated with seed maturation and development, protein homotrimerization and hexamerization, detoxification, defence responses to bacteria and fungi, and killing of cells of other organisms. The product localises to the extracellular space. Studies of related genes in other species link the family to seed storage functions, inflorescence branching, fruit firmness, fruit size, protein content, and salt tolerance.