The influence of CD70 molecule (CD70), TNF receptor superfamily member 4 (TNFRSF4) and killer cell immunoglobulin like receptor, two Ig domains and long cytoplasmic tail 3 (KIR2DL3) on the prognosis of RCC is not so obvious as the first two genes. Here, KIR3DL2 is linked to renal cell carcinoma.