chr start stop reference nuc variant nuc depth genic status zygosity variant ID 1 220968126 220968127 C T 32 GENIC homozygous 108994563 1 220973160 220973161 C A 30 GENIC homozygous 108543354 1 220973484 220973485 G A 19 GENIC homozygous 108543360