A cell lysate contains a variety of proteins. Among the proteins in the lysate is protein A, which is composed primarily of a large number of glutamate and aspartate along with hydrophobic amino acids, and has a molecular mass of 75 kilodaltons. Another protein in the lysate is protein B, which is composed of a large number of lysines and histidines along with hydrophobic amino acids, and has a molecular mass of 50 kilodaltons, What would you say regarding this lysate?