chr start stop reference nuc variant nuc depth genic status zygosity variant ID 12 22274903 22274904 G C 16 GENIC homozygous 115280816 12 22277899 22277900 G A 17 GENIC homozygous 115280818 12 22277901 22277902 T C 15 GENIC homozygous 115280820