chr start stop reference nuc variant nuc depth genic status zygosity variant ID 4 56111137 56111138 C T 19 GENIC homozygous 113273240 4 56111780 56111781 T G 24 GENIC homozygous 113273241 4 56111974 56111975 A G 18 GENIC homozygous 113273242