chr start stop reference nuc variant nuc depth genic status zygosity variant ID 6 145557995 145557996 A T 27 GENIC homozygous 54764559 6 145558070 145558071 T C 28 GENIC homozygous 54764560 6 145559061 145559062 T C 30 GENIC homozygous 54764565