Reaction: SLC5A6 transports vitamins from extracellular region to cytosol
Biotin (vitamin H or B7) is a water-soluble B-complex vitamin. Biotin is a cofactor in the metabolism of fatty acids and leucine, and it plays a role in gluconeogenesis. D-Pantothoate (vitamin B5), is a water-soluble vitamin needed to form coenzyme-A (CoA), and is critical in the metabolism and synthesis of carbohydrates, proteins, and fats. Lipoic acid is an organosulfur compound, the R-enantiomer of which is an essential cofactor for many enzyme complexes.
The human SLC5A6 encodes the Na+-dependent multivitamin transporter SMVT (Prasad PD et al, 1999; Wang H et al, 1999). SMVT co-transports these vitamins/cofactors into cells with Na+ ions electrogenically. PDZ domain-containing protein 11 (PDZD11 aka AIPP1) is a cytosolic protein with a single PDZ domain which can bind to the C-terminal class 1 PDZ binding motif of SMVT, resulting in a significant induction of vitamin uptake over that with SMVT alone (Nabokina et al. 2011).
The human SLC5A6 encodes the Na+-dependent multivitamin transporter SMVT (Prasad PD et al, 1999; Wang H et al, 1999). SMVT co-transports these vitamins/cofactors into cells with Na+ ions electrogenically. PDZ domain-containing protein 11 (PDZD11 aka AIPP1) is a cytosolic protein with a single PDZ domain which can bind to the C-terminal class 1 PDZ binding motif of SMVT, resulting in a significant induction of vitamin uptake over that with SMVT alone (Nabokina et al. 2011).
Reaction - small molecule participants:
Na+ [cytosol]
Na+ [extracellular region]
Reactome.org reaction link: R-HSA-429581
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Reaction input - small molecules:
sodium(1+)
Reaction output - small molecules:
sodium(1+)
Reactome.org link: R-HSA-429581