chr start stop reference nuc variant nuc depth genic status zygosity variant ID 20 4576514 4576515 G T 199 GENIC heterozygous 46168820 20 4576517 4576518 A T 192 GENIC heterozygous 45751942 20 4576531 4576532 A G 139 GENIC heterozygous 45751943