chr start stop reference nuc variant nuc depth genic status zygosity variant ID 1 100495345 100495346 T C 48 GENIC homozygous 810521283 1 100497800 100497801 C T 48 GENIC homozygous 810521284 1 100499974 100499975 T C 32 GENIC homozygous 810521285