chr start stop reference nuc variant nuc depth genic status zygosity variant ID 4 152506692 152506693 T A 1 GENIC homozygous 56986216 4 152506724 152506726 TT -- 7 GENIC homozygous 57842914 4 152507155 152507156 C G 25 GENIC homozygous 57842916