chr start stop reference nuc variant nuc depth genic status zygosity variant ID 2 173438105 173438106 T C 27 GENIC homozygous 136371937 2 173442397 173442398 C A 20 GENIC homozygous 136371938 2 173445003 173445004 A G 23 GENIC homozygous 136371939