Hereditary folate malabsorption (HFM) is a rare autosomal recessive disorder caused by impaired intestinal folate absorption. HFM is characterized by anemia, hypoimmunoglobulinemia, and recurrent infections. When diagnosed early, the signs and symptoms can be obviated by high oral doses of folates. Recently, several mutations were identified in the proton-coupled folate transporter (PCFT/SLC46A1) gene from patients with HFM.
Lasry I, Berman B, Straussberg R, Sofer Y, Bessler H, Sharkia M, Glaser F, Jansen G, Drori S, Assaraf YG
タイトル
A novel loss-of-function mutation in the proton-coupled folate transporter from a patient with hereditary folate malabsorption reveals that Arg 113 is crucial for function.
Hereditary folate malabsorption: a positively charged amino acid at position 113 of the proton-coupled folate transporter (PCFT/SLC46A1) is required for folic acid binding.
