chr start stop reference nuc variant nuc depth genic status zygosity variant ID 2 189616325 189616326 C T 6 GENIC homozygous 990239560 2 189622377 189622378 C T 17 GENIC homozygous 990239561 2 189624005 189624006 C T 29 GENIC homozygous 990239562