chr start stop reference nuc variant nuc depth genic status zygosity variant ID 8 18004432 18004433 T C 15 GENIC homozygous 52926532 8 18004588 18004589 C T 17 GENIC homozygous 53250903 8 18004789 18004790 G T 14 GENIC possibly homozygous 53250905