chr start stop reference nuc variant nuc depth genic status zygosity variant ID 4 200421775 200421776 G A 74 GENIC heterozygous 57045467 4 200422180 200422181 C T 40 GENIC heterozygous 57045468 4 200422901 200422902 T C 91 GENIC heterozygous 57045470