chr start stop reference nuc variant nuc depth genic status zygosity variant ID 15 2751674 2751675 C A 35 GENIC heterozygous 49559293 15 2751675 2751676 A C 35 GENIC heterozygous 49559296 15 2751676 2751677 C A 35 GENIC heterozygous 49559298