chr start stop reference nuc variant nuc depth genic status zygosity variant ID 1 87408120 87408121 C T 31 GENIC homozygous 60752926 1 87409761 87409762 C T 19 GENIC homozygous 60752928 1 87410306 87410307 T C 40 GENIC homozygous 60752930