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  Domain Name: NR_LBD_PXR_like
The ligand binding domain of xenobiotic receptors:pregnane X receptor and constitutive androstane receptor. The ligand binding domain of xenobiotic receptors: This xenobiotic receptor family includes pregnane X receptor (PXR), constitutive androstane receptor (CAR) and other related nuclear receptors. They function as sensors of toxic byproducts of cell metabolism and of exogenous chemicals, to facilitate their elimination. The nuclear receptor pregnane X receptor (PXR) is a ligand-regulated transcription factor that responds to a diverse array of chemically distinct ligands, including many endogenous compounds and clinical drugs. The ligand binding domain of PXR shows remarkable flexibility to accommodate both large and small molecules. PXR functions as a heterodimer with retinoic X receptor-alpha (RXRa) and binds to a variety of response elements in the promoter regions of a diverse set of target genes involved in the metabolism, transport, and elimination of these molecules from the cell. Constitutive androstane receptor (CAR) is a closest mammalian relative of PXR, which has also been proposed to function as a xenosensor. CAR is activated by some of the same ligands as PXR and regulates a subset of common genes. The sequence homology and functional similarity suggests that the CAR gene arose from a duplication of an ancestral PXR gene. Like other nuclear receptors, xenobiotic receptors have a central well conserved DNA binding domain (DBD), a variable N-terminal domain, a flexible hinge and a C-terminal ligand binding domain (LBD).
No pairwise interactions are available for this conserved domain.

Total Mutations Found: 138
Total Disease Mutations Found: 74
This domain occurred 25 times on human genes (109 proteins).



  COLON CANCER, SOMATIC
  LIPODYSTROPHY, FAMILIAL PARTIAL, TYPE 3
  MATURITY-ONSET DIABETES OF THE YOUNG, TYPE 1
  MICROPHTHALMIA, SYNDROMIC 12
  THYROID HORMONE RESISTANCE, GENERALIZED
  THYROID HORMONE RESISTANCE, GENERALIZED, AUTOSOMAL DOMINANT
  THYROID HORMONE RESISTANCE, SELECTIVE PITUITARY
  THYROID HORMONE RESISTANCE, SELECTIVE PITUITARY, INCLUDED
  VARIANT OF UNKNOWN SIGNIFICANCE
  VITAMIN D-DEPENDENT RICKETS, TYPE 2A


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Range on the Protein:  

   Protein ID            Protein Position

Domain Position:  


Feature Name:Total Found:
ligand binding site
coactivator recognition s
heterodimer interface

















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Please Cite: Peterson, T.A., Adadey, A., Santana-Cruz ,I., Sun, Y., Winder A, Kann, M.G., (2010) DMDM: Domain Mapping of Disease Mutations. Bioinformatics 26 (19), 2458-2459.

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