chr start stop reference nuc variant nuc depth genic status zygosity variant ID 1 216181615 216181616 T C 20 GENIC homozygous 108535591 1 216181617 216181618 A C 19 GENIC homozygous 108991567 1 216183502 216183503 T C 31 GENIC homozygous 108535592