chr start stop reference nuc variant nuc depth genic status zygosity variant ID 1 230664941 230664942 A G 18 GENIC homozygous 109004901 1 230664945 230664946 C T 17 GENIC homozygous 109451752 1 230665211 230665212 G A 23 GENIC homozygous 109451753