We identify three low-frequency missense variants associated with the PDAC risk: rs34309238 in PKN1 (OR = 1.77, 95% CI: 1.48-2.12, P = 5.35 × 10<sup>-10</sup>), rs2242241 in DOK2 (OR = 1.85, 95% CI: 1.50-2.27, P = 4.34 × 10<sup>-9</sup>), and rs183117027 in APOB (OR = 2.34, 95% CI: 1.72-3.16, P = 4.21 × 10<sup>-8</sup>).
Seven polymorphisms of caspase 9 (rs2308941)C-->T and DOK2(rs2242241) T-->G, 6 of polymorphisms of EGFL3 (rs947345)A -->G, caspase 9 ( rs2308938) C-->G and PHGDH(rs1801955)T-->A, 5 of polymorphisms of E2F2(rs3218170) G-->A,4 of polymorphisms of MUTYH(rs1140507)T-->C and BNIP3L(rs1055806)G-->T, and 1 of polymorphism of TNFRSF1B (rs1061622)T-->G were detected by the chip in the tissues of 10 HCC.