NR1I2 Gene Summary [Human]

This gene 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. [provided by RefSeq, Jul 2008]

Details

Type
Protein Coding
Official Symbol
NR1I2
Official Name
nuclear receptor subfamily 1 group I member 2 [Source:HGNC Symbol;Acc:HGNC:7968]
Ensembl ID
ENSG00000144852
Bio databases IDs NCBI: 8856 Ensembl: ENSG00000144852
Aliases nuclear receptor subfamily 1 group I member 2, pregnane X receptor, orphan nuclear receptor PXR
Synonyms BXR, mPXR, nuclear receptor subfamily 1 group I member 2, nuclear receptor subfamily 1, group I, member 2, ONR1, PAR, PAR1, PAR2, PARq, PRR, PXR, PXR1, PXR.1, PXR.2, SAR, SXR
Species
Human, Homo sapiens
OrthologiesMouseRat

Protein Domains

A protein domain is a distinct structural or functional region within a protein that can evolve, function, and exist independently of the rest of the protein chain. These domains in human NR1I2 often fold into stable, three-dimensional structures and are associated with specific biological functions, such as binding to DNA, other proteins, or small molecules.
  • RNA polymerase II transcription regulatory region sequence-specific binding transcriptional activator activity
  • ligand-dependent nuclear receptor interactor
  • DNA binding domain
  • nucleic acid binding
  • DNA-binding domain of nuclear receptors is composed of two C4-type zinc fingers
  • AF-2 transcription activation domain
  • protein binding
  • sequence-specific DNA binding
  • nuclear receptor ligand binding domain
  • RNA polymerase II transcription factor activity, sequence-specific DNA binding
  • AF-1 domain
  • double-stranded DNA binding
  • ligand-binding domain
  • ligand-dependent nuclear receptor
  • hinge domain
  • Ligand-binding domain of nuclear hormone receptor

Pathways

Biological processes and signaling networks where the NR1I2 gene in human plays a role, providing insight into its function and relevance in health or disease.

Top Findings

The most significant associations for this gene, including commonly observed domains, pathway involvement, and functional highlights based on current data.
binds
disease
  • epithelial cancer
  • cancer
  • liver cancer
  • uterine leiomyoma
  • renal failure
  • experimental inflammatory bowel disease
  • hyperplasia
  • microvesicular hepatic steatosis
  • hepatomegaly
  • liver failure
regulated by
  • lipopolysaccharide
  • D-glucose
  • deoxycholate
  • ethanol
  • bile acid
  • dexamethasone
  • cyclophosphamide
  • dihydromethysticin
  • pregnenolone
  • cisplatin
regulates
role in cell
  • apoptosis
  • activation in
  • cell death
  • expression in
  • production in
  • number
  • phosphorylation in
  • migration
  • proliferation
  • formation

Subcellular Expression

Locations within the cell where the protein is known or predicted to be active, providing insight into its function and cellular context.
  • Nucleus
  • nuclear fraction
  • intermediate filament cytoskeleton
  • Cytoplasm
  • cytosol
  • nuclear foci
  • nucleoplasm
  • nuclear bodies
  • chromatin

Gene Ontology Annotations

Describes the biological processes, cellular components, and molecular functions associated with the human NR1I2 gene, providing context for its role in the cell.

Biological Process

Functions and activities the gene product is involved in
  • signal transduction
  • regulation of transcription, DNA-dependent
  • steroid metabolic process
  • xenobiotic catabolic process
  • positive regulation of transcription from RNA polymerase II promoter
  • negative regulation of transcription from RNA polymerase II promoter
  • negative regulation of transcription, DNA-dependent
  • positive regulation of transcription, DNA-dependent
  • positive regulation of gene expression
  • xenobiotic metabolic process
  • cell differentiation
  • xenobiotic transport
  • intracellular receptor mediated signaling pathway

Cellular Component

Where in the cell the gene product is active
  • transcription factor complex
  • nucleus
  • nuclear body
  • intermediate filament cytoskeleton
  • chromatin
  • nucleoplasm

Molecular Function

What the gene product does at the molecular level
  • ligand-dependent nuclear receptor binding
  • zinc ion binding
  • protein binding
  • ligand-activated sequence-specific DNA binding RNA polymerase II transcription factor activity
  • RNA polymerase II core promoter proximal region sequence-specific DNA binding
  • RNA polymerase II regulatory region sequence-specific DNA binding
  • RNA polymerase II transcription regulatory region sequence-specific DNA binding transcription factor activity involved in positive regulation of transcription
  • sequence-specific DNA binding RNA polymerase II transcription factor activity

Gene-Specific Assays for Results You Can Trust

Streamline your workflow with assays designed for this gene. Our targeted dPCR and qPCR assays help you generate meaningful data – efficiently and accurately.