chr start stop reference nuc variant nuc depth genic status zygosity variant ID 4 72530722 72530723 A G 20 GENIC homozygous 112709973 4 72530797 72530798 A G 22 GENIC homozygous 112709975 4 72530941 72530942 G T 20 GENIC homozygous 112709977