preferred_name: Cleavage of factor B to form classical C3 convertase  (Gallus gallus)
preferred_name_lc: cleavage of factor b to form classical c3 convertase  (gallus gallus)
label: Cleavage of factor B to form classical C3 convertase  (Gallus gallus)
label_lc: cleavage of factor b to form classical c3 convertase  (gallus gallus)