chr start stop reference nuc variant nuc depth genic status zygosity variant ID 4 123764994 123764995 C T 17 GENIC homozygous 113379755 4 123765255 123765256 A G 25 GENIC homozygous 113379757 4 123765331 123765332 C A 19 GENIC homozygous 113379759