chr start stop reference nuc variant nuc depth genic status zygosity variant ID 3 15689336 15689337 C G 34 GENIC homozygous 112068271 3 15689495 15689496 C T 22 GENIC homozygous 112068273 3 15689659 15689660 C T 18 GENIC homozygous 112068277