chr start stop reference nuc variant nuc depth genic status zygosity variant ID 20 3147233 3147234 C A 23 GENIC homozygous 109388836 20 3147310 3147311 T C 26 GENIC homozygous 109388837 20 3147337 3147338 T G 28 GENIC homozygous 109388838 20 3149791 3149792 C T 15 GENIC homozygous 109388839