CD79A and systemic lupus erythematosus: FSMKL’s highest weighted kernel was “Intestinal Immune Response for IgA production”, followed in importance by “Arachidonic acid metabolism”, “Systemic lupus erythematosus”, “Glycerophospholipid metabolism”, and “Homologous recombination”—all of these KEGG-based kernels scored higher than any clinical variable with the exception of tumor size [16].