chr start stop reference nuc variant nuc depth genic status zygosity variant ID 4 44522022 44522023 G A 20 GENIC homozygous 57305201 4 44522205 44522206 G A 19 GENIC homozygous 57305204 4 44522511 44522512 C T 36 GENIC homozygous 57305207