Single nucleotide polymorphism (SNP) and the vitamin B12 content of bovine milk. A significant association was found between 68 SNPs and the B12 content of raw milk in 487 first-lactation cows, but these SNPs were not in the following genes involved in B12 uptake and transport systems.
GIF: gastric intrinsic factor; CUBN: cubilin; AMN: amnionless; ABCC1: ATP-binding cassette; sub-family C; member 1; CD320: transcobalamin receptor; TCN1: transcobalaminI (haptocorin); TCN2: transcobalaminII; LMBRD1: methylmalonic aciduria cblF type 1; MMACHC: methylmalonic aciduria cblC type; MMADHC: methylmalonic aciduria cblD type; MMAB: methylmalonic aciduria cblB type; MUT: methylmalonyl CoA mutase; MMAA: methylmalonic aciduria cblA type; MTR: 5-methyltetrahydrofolate-homocysteine methyltransferase; MTRR: 5-methyltetrahydrofolate-homocysteine reductase; LRP2: low-density lipoprotein receptor-related protein 2 (megalin).