chr start stop reference nuc variant nuc depth genic status zygosity variant ID 18 66262818 66262819 C T 32 GENIC homozygous 971294667 18 66262832 66262833 A C 33 GENIC homozygous 971294668 18 66262899 66262900 C T 31 GENIC homozygous 971294669