chr start stop reference nuc variant nuc depth genic status zygosity variant ID 1 216953819 216953820 A G 57 GENIC homozygous 108536250 1 216954279 216954280 T C 64 GENIC homozygous 108992452 1 216954352 216954353 C A 55 GENIC homozygous 108536254