chr start stop reference nuc variant nuc depth genic status zygosity variant ID 2 251529573 251529574 C T 33 GENIC homozygous 110384958 2 251530939 251530940 G T 51 GENIC homozygous 110852898 2 251531252 251531253 T C 59 GENIC homozygous 110852900