chr start stop reference nuc variant nuc depth genic status zygosity variant ID 4 44521910 44521911 T G 41 GENIC heterozygous 56854814 4 44522345 44522346 A T 56 GENIC possibly homozygous 56854815 4 44522702 44522703 C G 48 GENIC homozygous 56854816