chr start stop reference nuc variant nuc depth genic status zygosity variant ID 1 174380156 174380157 C T 33 GENIC homozygous 60950229 1 174380164 174380165 C T 32 GENIC homozygous 61912051 1 174380306 174380307 T G 34 GENIC homozygous 60950231