chr start stop reference nuc variant nuc depth genic status zygosity variant ID 4 119904628 119904629 C T 18 GENIC homozygous 126022746 4 119904726 119904727 A T 20 GENIC homozygous 126022747 4 119904784 119904785 C T 23 GENIC homozygous 126022748