chr start stop reference nuc variant nuc depth genic status zygosity variant ID 4 72530722 72530723 A G 13 GENIC homozygous 112709973 4 72530797 72530798 A G 17 GENIC homozygous 112709975 4 72530941 72530942 G T 15 GENIC homozygous 112709977