chr start stop reference nuc variant nuc depth genic status zygosity variant ID 4 216127669 216127670 G A 16 GENIC homozygous 621555666 4 216127778 216127779 C T 17 GENIC homozygous 621555667 4 216127782 216127783 T C 17 GENIC homozygous 621555668