chr start stop reference nuc variant nuc depth genic status zygosity variant ID 4 25536134 25536135 C T 18 GENIC homozygous 112559051 4 25537928 25537929 A G 31 GENIC homozygous 112559055 4 25538058 25538059 G A 22 GENIC homozygous 112559057