chr start stop reference nuc variant nuc depth genic status zygosity variant ID 1 220049844 220049845 T C 32 GENIC homozygous 108542115 1 220054282 220054283 G T 32 GENIC homozygous 108542119 1 220063331 220063332 T C 44 GENIC homozygous 108542123