chr start stop reference nuc variant nuc depth genic status zygosity variant ID 7 2820637 2820638 T C 23 GENIC homozygous 115545922 7 2821066 2821067 T G 27 GENIC homozygous 115545924 7 2822056 2822057 A G 19 GENIC homozygous 115545926 7 2823276 2823277 A G 20 GENIC homozygous 115545934