chr start stop reference nuc variant nuc depth genic status zygosity variant ID 1 261073291 261073292 C T 4 GENIC homozygous 120762681 1 261073292 261073293 T C 4 GENIC homozygous 120762683 1 261074153 261074154 A G 21 GENIC homozygous 108628971