Sult1a1
Function
Sulfotransferase that utilizes 3'-phospho-5'-adenylyl sulfate (PAPS) as sulfonate donor to catalyze the sulfate conjugation of a wide variety of acceptor molecules bearing a hydroxyl or an amine groupe. Sulfonation increases the water solubility of most compounds, and therefore their renal excretion, but it can also result in bioactivation to form active metabolites. Displays broad substrate specificity for small phenolic compounds. Plays an important role in the sulfonation of endogenous molecules such as steroid hormones and 3,3'-diiodothyronin (By similarity). Mediates the sulfate conjugation of a variety of xenobiotics, including the drugs acetaminophen and minoxidil (By similarity). Mediates also the metabolic activation of carcinogenic N-hydroxyarylamines leading to highly reactive intermediates capable of forming DNA adducts, potentially resulting in mutagenesis (By similarity). May play a role in gut microbiota-host metabolic interaction. O-sulfonates 4-ethylphenol (4-EP), a dietary tyrosine-derived metabolite produced by gut bacteria. The product 4-EPS crosses the blood-brain barrier and may negatively regulate oligodendrocyte maturation and myelination, affecting the functional connectivity of different brain regions associated with the limbic system.
Sequence Similarities
Belongs to the sulfotransferase 1 family.
Tissue Specificity
Expressed in brain, colon, liver, and small intestine of mice colonized with B.ovatus and L.plantarum.
Cellular localization
- Cytoplasm
Alternative names
St1a1, Stp, Stp1, Sult1a1, Sulfotransferase 1A1, ST1A1, Aryl sulfotransferase, Phenol sulfotransferase, Phenol/aryl sulfotransferase, ST1A4, Sulfokinase, mSTp1