NR1I2

NR1I2 product belongs to the nuclear receptor superfamily, members of which are transcription factors characterized by a ligand-binding domain and a DNA-binding domain. The encoded protein is a transcriptional regulator of the cytochrome P450 gene CYP3A4, binding to the response element of the CYP3A4 promoter as a heterodimer with the 9-cis retinoic acid receptor RXR. It is activated by a range of compounds that induce CYP3A4, including dexamethasone and rifampicin. Several alternatively spliced transcripts encoding different isoforms, some of which use non-AUG (CUG) translation initiation codon, have been described for this gene. Additional transcript variants exist, however, they have not been fully characterized.

Full Name

Nuclear Receptor Subfamily 1 Group I Member 2

Function

Nuclear receptor that binds and is activated by variety of endogenous and xenobiotic compounds. Transcription factor that activates the transcription of multiple genes involved in the metabolism and secretion of potentially harmful xenobiotics, drugs and endogenous compounds. Activated by the antibiotic rifampicin and various plant metabolites, such as hyperforin, guggulipid, colupulone, and isoflavones. Response to specific ligands is species-specific. Activated by naturally occurring steroids, such as pregnenolone and progesterone. Binds to a response element in the promoters of the CYP3A4 and ABCB1/MDR1 genes.

Biological Process

Cell differentiationManual Assertion Based On ExperimentIBA:GO_Central
Negative regulation of transcription by RNA polymerase IIManual Assertion Based On ExperimentIBA:GO_Central
Negative regulation of transcription, DNA-templatedManual Assertion Based On ExperimentIDA:MGI
Positive regulation of gene expressionIEA:Ensembl
Positive regulation of transcription by RNA polymerase IIManual Assertion Based On ExperimentIDA:NTNU_SB
Positive regulation of transcription, DNA-templatedManual Assertion Based On ExperimentIDA:UniProtKB
Regulation of transcription, DNA-templatedManual Assertion Based On ExperimentIDA:GO_Central
Signal transductionManual Assertion Based On ExperimentTAS:ProtInc
Steroid metabolic processManual Assertion Based On ExperimentTAS:ProtInc
Xenobiotic catabolic processManual Assertion Based On ExperimentIDA:UniProtKB
Xenobiotic metabolic processManual Assertion Based On ExperimentIDA:UniProtKB
Xenobiotic transportManual Assertion Based On ExperimentIDA:UniProtKB

Cellular Location

Nucleus