chr start stop reference nuc variant nuc depth genic status zygosity variant ID 4 245818639 245818640 G A 29 GENIC heterozygous 57191832 4 245819887 245819888 A C 20 GENIC heterozygous 57191840 4 245820417 245820418 A T 20 GENIC heterozygous 57191846