CD10, also known as "Common Acute Lymphoblastic Antigen," is a "zinc-dependent metalloproteinase" present on the surface of the cell, commonly expressed in lymphoid stem cells, bone marrow, mature neutrophils, pro-B lymphoblasts, various subtypes of lymphomas, endometrial stromal sarcomas, and renal cell carcinomas. The gene discussed is MME; the disease is renal cell carcinoma.