Sulfotransferase 2B1

Definition:

Sulfotransferase that utilizes 3'-phospho-5'-adenylyl sulfate (PAPS) as sulfonate donor to catalyze the sulfate conjugation. Responsible for the sulfation of cholesterol. Catalyzes sulfation of the 3beta-hydroxyl groups of steroids, such as, pregnenolone and dehydroepiandrosterone (DHEA). Preferentially sulfonates cholesterol, while it has also significant activity with pregnenolone and DHEA. Plays a role in epidermal cholesterol metabolism and in the regulation of epidermal proliferation and differentiation.; [Isoform 2]: Sulfonates pregnenolone but not cholesterol.

References:

[1]. Ian T Cook, et al. 24-hydroxycholesterol sulfation by human cytosolic sulfotransferases: formation of monosulfates and disulfates, molecular modeling, sulfatase sensitivity, and inhibition of liver x receptor activation. Drug Metab Dispos. 2009 Oct;37(10):2069-78. [Content Brief]

[2]. Hirotoshi Fuda, et al. Mutational analysis of human hydroxysteroid sulfotransferase SULT2B1 isoforms reveals that exon 1B of the SULT2B1 gene produces cholesterol sulfotransferase, whereas exon 1A yields pregnenolone sulfotransferase. J Biol Chem. 2002 Sep 27;277(39):36161-6. [Content Brief]

[3]. Lisa Heinz, et al. Mutations in SULT2B1 Cause Autosomal-Recessive Congenital Ichthyosis in Humans. Am J Hum Genet. 2017 Jun 1;100(6):926-939. [Content Brief]

[4]. C Her, et al. Human hydroxysteroid sulfotransferase SULT2B1: two enzymes encoded by a single chromosome 19 gene. Genomics. 1998 Nov 1;53(3):284-95. [Content Brief]

[5]. Dongning He, et al. Characterization of proline-serine-rich carboxyl terminus in human sulfotransferase 2B1b: immunogenicity, subcellular localization, kinetic properties, and phosphorylation. Drug Metab Dispos. 2006 Oct;34(10):1749-55. [Content Brief]

[6]. Emily D Salman, et al. Site-directed mutagenesis of human cytosolic sulfotransferase (SULT) 2B1b to phospho-mimetic Ser348Asp results in an isoform with increased catalytic activity. J Steroid Biochem Mol Biol. 2011 Nov;127(3-5):315-23. [Content Brief]

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