chr start stop reference nuc variant nuc depth genic status zygosity variant ID 1 222252279 222252280 C A 36 GENIC homozygous 108995390 1 222252892 222252893 A T 25 GENIC homozygous 108546435 1 222255243 222255244 G T 25 GENIC homozygous 108546437