chr start stop reference nuc variant nuc depth genic status zygosity variant ID 4 17917471 17917472 T A 17 GENIC homozygous 126004243 4 17919310 17919311 T C 8 GENIC homozygous 113252539 4 17920333 17920334 T G 7 GENIC heterozygous 112530539