chr start stop reference nuc variant nuc depth genic status zygosity variant ID 1 220727584 220727585 G A 7 GENIC homozygous 931217306 1 220727912 220727913 T G 6 GENIC homozygous 931217307 1 220728287 220728288 C T 7 GENIC homozygous 931217308