chr start stop reference nuc variant nuc depth genic status zygosity variant ID 4 7271186 7271187 A G 27 GENIC homozygous 112481341 4 7274838 7274839 A G 28 GENIC homozygous 112481353 4 7280293 7280294 T C 23 GENIC homozygous 113434198