ETV6 and lymphoproliferative syndrome: The Cent/Tel1 motif was characterized by the presence of the KIR2DL5, KIR2DS3 and KIR2DS5 genes, and its frequency was lower in lymphoproliferative disorder cases than in CHC cases (6.5% versus 14.4%, p = 0.04, Fig. 3C) In HCV-negative patients, it was found to be 13.8%.