chr start stop reference nuc variant nuc depth genic status zygosity variant ID 2 254340551 254340552 G A 28 GENIC homozygous 110915686 2 254341099 254341100 A G 21 GENIC homozygous 110397969 2 254346694 254346695 C T 23 GENIC homozygous 110397983