Gene expression profile of BTNs, including BTN1A1, BTN2A1, BTN2A2, BTN2A3P, BTN3A1, BTN3A2, BTN3A3, BTNL2, BTNL3, BTNL8, BTNL9, BTNL10, and SKINTL was evaluated in normal and tumor lung tissues (Fig. 2A). The gene discussed is BTN2A2; the disease is neoplasm.