chr start stop reference nuc variant nuc depth genic status zygosity variant ID 19 56221394 56221395 T C 16 GENIC homozygous 109738178 19 56228141 56228142 A G 15 GENIC homozygous 109738184 19 56228210 56228211 G C 18 GENIC homozygous 109997849