chr start stop reference nuc variant nuc depth genic status zygosity variant ID 17 4849267 4849268 G T 17 GENIC homozygous 110937748 17 4849268 4849269 G T 16 GENIC homozygous 110937750 17 4849277 4849278 G A 14 GENIC homozygous 110937752