chr start stop reference nuc variant nuc depth genic status zygosity variant ID 18 74446516 74446517 T G 32 GENIC heterozygous 46515912 18 74446662 74446663 A C 17 GENIC heterozygous 46515913 18 74447624 74447625 T C 40 GENIC heterozygous 46515915 18 74447731 74447732 C G 22 GENIC heterozygous 46515916