chr start stop reference nuc variant nuc depth genic status zygosity variant ID 1 231465867 231465868 G A 6 GENIC heterozygous 622850947 1 231465868 231465869 G A 6 GENIC heterozygous 622850948 1 231465869 231465870 G C 6 GENIC heterozygous 622850949