Normal allele: AA
Causes decreased concentrations of vitamin B6, vitamin B12, folic acid and increased homocysteine in the blood.
Polymorphism rs1999594 is related to topics like this:
Research and publications:
19744961 Genome-wide significant predictors of metabolites in the one-carbon metabolism pathway.
27449795 Shared and unique common genetic determinants between pediatric and adult celiac disease.