chr start stop reference nuc variant nuc depth genic status zygosity variant ID 8 61704429 61704430 T C 22 GENIC homozygous 52988643 8 61704450 61704451 T C 17 GENIC homozygous 52988645 8 61704646 61704647 G C 30 GENIC homozygous 52988647