chr start stop reference nuc variant nuc depth genic status zygosity variant ID 18 27723353 27723354 T C 26 GENIC heterozygous 927084462 18 27724355 27724358 CAT --- 40 GENIC heterozygous 927213864 18 27726672 27726673 T C 71 GENIC heterozygous 927084463