chr start stop reference nuc variant nuc depth genic status zygosity variant ID 7 51422450 51422451 C A 16 GENIC homozygous 115681773 7 51422451 51422452 T G 16 GENIC homozygous 115681774 7 51493602 51493603 A C 20 GENIC homozygous 115681834