chr start stop reference nuc variant nuc depth genic status zygosity variant ID 4 77963534 77963535 C T 24 GENIC homozygous 113351685 4 77963730 77963731 C T 27 GENIC homozygous 112737247 4 77964037 77964038 G A 22 GENIC homozygous 112737249 4 77965104 77965105 C T 25 GENIC homozygous 112737253