chr start stop reference nuc variant nuc depth genic status zygosity variant ID 2 174008608 174008609 T C 60 GENIC homozygous 136372642 2 174010564 174010565 A G 52 GENIC homozygous 136372643 2 174011660 174011661 G A 56 GENIC homozygous 136372645