chr start stop reference nuc variant nuc depth genic status zygosity variant ID 4 21867938 21867939 G T 11 GENIC homozygous 811665274 4 21902064 21902065 G C 51 GENIC heterozygous 811665275 4 21902709 21902710 C T 8 GENIC heterozygous 811665276