chr start stop reference nuc variant nuc depth genic status zygosity variant ID 12 39777152 39777153 T G 8 GENIC homozygous 50201336 12 39777841 39777842 T C 8 GENIC homozygous 50201344 12 39778092 39778093 T C 7 GENIC homozygous 50201346