We observed three new genome-wide significant nonsynonymous variants associated with Alzheimer's disease: a protective variant in PLCG2 (rs72824905: p.Pro522Arg, P = 5.38 × 10<sup>-10</sup>, odds ratio (OR) = 0.68, minor allele frequency (MAF)<sub>cases</sub> = 0.0059, MAF<sub>controls</sub> = 0.0093), a risk variant in ABI3 (rs616338: p.Ser209Phe, P = 4.56 × 10<sup>-10</sup>, OR = 1.43, MAF<sub>cases</sub> = 0.011, MAF<sub>controls</sub> = 0.008), and a new genome-wide significant variant in TREM2 (rs143332484: p.Arg62His, P = 1.55 × 10<sup>-14</sup>, OR = 1.67, MAF<sub>cases</sub> = 0.0143, MAF<sub>controls</sub> = 0.0089), a known susceptibility gene for Alzheimer's disease.