chr start stop reference nuc variant nuc depth genic status zygosity variant ID 8 19947535 19947536 C CTTT 2 GENIC homozygous 722606268 8 19966809 19966812 AAG --- 3 GENIC heterozygous 722606269 8 19980295 19980296 T - 2 GENIC heterozygous 722606270