The process in which a precursor cell type acquires the specialized features of a B cell. A B cell is a lymphocyte of B lineage with the phenotype CD19-positive and capable of B cell mediated immunity.
B cell proliferation +
establishment of B cell polarity
natural killer cell differentiation +
negative regulation of B cell activation +
negative regulation of lymphocyte differentiation +
positive regulation of B cell activation +
positive regulation of lymphocyte differentiation +