chr start stop reference nuc variant nuc depth genic status zygosity variant ID 1 145153734 145153735 G A 20 GENIC homozygous 541070657 1 145153735 145153736 G A 20 GENIC homozygous 541070658 1 145153794 145153795 C T 15 GENIC homozygous 538177719 1 145153797 145153798 C T 14 GENIC homozygous 538177720