chr start stop reference nuc variant nuc depth genic status zygosity variant ID 1 178527037 178527038 C T 20 GENIC homozygous 937104458 1 178530738 178530739 C A 16 GENIC homozygous 937104459 1 178532044 178532045 G T 32 GENIC homozygous 937104460