Medical Subject Headings

Last uploaded: March 22, 2026
Id http://purl.bioontology.org/ontology/MESH/D000077297
http://purl.bioontology.org/ontology/MESH/D000077297
Preferred Name

Pregnane X Receptor

Definitions
Steroid receptor that binds and is activated by variety of endogenous compounds and XENOBIOTICS. It binds the response element in promoters of genes that encode CYTOCHROME P450 3A4 and ATP BINDING CASSETTE TRANSPORTER, SUBFAMILY B, MEMBER 1 proteins, and also activates the transcription of multiple genes involved in the metabolism and secretion of potentially harmful xenobiotics, drugs, and endogenous compounds. It is activated by the antibiotic RIFAMPICIN and various plant metabolites, such as hyperforin, guggulipid, colupulone, and ISOFLAVONES.
Synonyms
Steroid X Receptor
SXR Receptor
Nuclear Receptor Subfamily 1, Group I, Member 2
NR1I2
Steroid and Xenobiotic Receptor
Type http://www.w3.org/2002/07/owl#Class
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