Aliases for NR1H2 Gene
External Ids for NR1H2 Gene
Previous HGNC Symbols for NR1H2 Gene
Previous GeneCards Identifiers for NR1H2 Gene
The liver X receptors, LXRA (NR1H3; MIM 602423) and LXRB, form a subfamily of the nuclear receptor superfamily and are key regulators of macrophage function, controlling transcriptional programs involved in lipid homeostasis and inflammation. The inducible LXRA is highly expressed in liver, adrenal gland, intestine, adipose tissue, macrophages, lung, and kidney, whereas LXRB is ubiquitously expressed. Ligand-activated LXRs form obligate heterodimers with retinoid X receptors (RXRs; see MIM 180245) and regulate expression of target genes containing LXR response elements (summary by Korf et al., 2009 [PubMed 19436111]).[supplied by OMIM, Jan 2010]
GeneCards Summary for NR1H2 Gene
NR1H2 (Nuclear Receptor Subfamily 1, Group H, Member 2) is a Protein Coding gene. Diseases associated with NR1H2 include thyroid hormone resistance and complete androgen insensitivity syndrome. Among its related pathways are Regulation of Cholesterol Biosynthesis by SREBP (SREBF) and Gene Expression. GO annotations related to this gene include sequence-specific DNA binding and ligand-activated sequence-specific DNA binding RNA polymerase II transcription factor activity. An important paralog of this gene is NR1I2.
UniProtKB/Swiss-Prot for NR1H2 Gene
Nuclear receptor. Binds preferentially to double-stranded oligonucleotide direct repeats having the consensus half-site sequence 5-AGGTCA-3 and 4-nt spacing (DR-4). Regulates cholesterol uptake through MYLIP-dependent ubiquitination of LDLR, VLDLR and LRP8; DLDLR and LRP8. Interplays functionally with RORA for the regulation of genes involved in liver metabolism (By similarity).
Liver X receptors (LXRs) and farnesoid X receptors (FXRs) are members of the steroid analog-activated nuclear receptor subfamily, which form heterodimers with members of the retinoid X receptor family. There are two closely related isoforms of each of these enzymes; LXRalpha and LXRbeta, and FXRalpha and FXRbeta (pseudogene in man). LXRalpha and FXRalpha expression is restricted to the liver, small intestine, kidney and adrenal gland, whilst LXRbeta and FXRbeta are ubiquitously expressed. Despite acting on some of the same target genes, including cholesterol 7alpha-hydroxylase (CYP7A1) and SREBP-1c, LXRs and FXRs have different physiological roles. LXRs are involved in cholesterol homeostasis, inhibition of proinflammatory gene expression in atherosclerosis and activation of innate immunity, whilst FXRs have a vital function in bile acid homeostasis.