The RCC TMA was stained for: ABCC2, CALD, CD55, CD83, CD9, CD99, FABP3, FABP5, HELLS, HYP1110014F24, IFITM1, IGKC, MON1B, S100A, SERPINA1, SLC16, SUCLG2, SNCA, TFAP2A, TFPI, TRPS1, VAV3 and VIM (Table 2). The gene discussed is CD9; the disease is renal cell carcinoma.