The result of laboratory tests showed leukopenia (white blood cell (WBC): 4200/mm3), thrombocytopenia (platelet count: 73,000/mm3), high C-reactive protein (CRP: 43 mg/L), hemoglobinemia (hemoglobin level: 11.2 g/dL), and normal liver function tests. The gene discussed is CRP; the disease is Decreased total leukocyte count.