chr start stop reference nuc variant nuc depth genic status zygosity variant ID 4 115404444 115404445 T C 12 GENIC homozygous 112815456 4 115405163 115405164 C T 8 GENIC homozygous 112815458 4 115406817 115406818 T C 16 GENIC homozygous 112815460