chr start stop reference nuc variant nuc depth genic status zygosity variant ID 1 220653364 220653365 G C 16 GENIC homozygous 108542838 1 220653435 220653436 G T 42 GENIC homozygous 108542840 1 220662997 220662998 A G 37 GENIC homozygous 108542844