chr start stop reference nuc variant nuc depth genic status zygosity variant ID 4 117488463 117488464 A G 23 GENIC homozygous 112819498 4 117490040 117490041 T G 31 GENIC homozygous 112819500 4 117491439 117491440 C A 30 GENIC homozygous 112819502