chr start stop reference nuc variant nuc depth genic status zygosity variant ID 2 221962231 221962232 T C 17 GENIC heterozygous 59407168 2 221964507 221964508 A G 27 GENIC heterozygous 59407172 2 221977069 221977070 C T 36 GENIC heterozygous 59407209