chr start stop reference nuc variant nuc depth genic status zygosity variant ID 4 28996816 28996819 GGG --- 16 GENIC heterozygous 58330213 4 28996820 28996821 G - 16 GENIC heterozygous 58330214 4 28997042 28997043 T G 33 GENIC homozygous 58330215