chr start stop reference nuc variant nuc depth genic status zygosity variant ID 4 17907371 17907372 G A 21 GENIC heterozygous 56770907 4 17908011 17908012 C T 24 GENIC possibly homozygous 56770908 4 17908505 17908506 T C 13 GENIC heterozygous 56770910