chr start stop reference nuc variant nuc depth genic status zygosity variant ID 18 74158401 74158402 C G 3 GENIC homozygous 46784857 18 74162644 74162645 A AC 29 GENIC homozygous 46515096 18 74163986 74163987 C CA 15 GENIC heterozygous 46515098