Retinoid X receptor alpha
Retinoid X receptor alpha (RXR-alpha), also known as NR2B1 (nuclear receptor subfamily 2, group B, member 1) is a nuclear receptor that in humans is encoded by the RXRA gene.[5]
Function
Retinoid X receptors (RXRs) and retinoic acid receptors (RARs), are nuclear receptors that mediate the biological effects of retinoids by their involvement in retinoic acid-mediated gene activation. These receptors exert their action by binding, as homodimers or heterodimers, to specific sequences in the promoters of target genes and regulating their transcription. The protein encoded by this gene is a member of the steroid and thyroid hormone receptor superfamily of transcription factors.[6] In the absence of ligand, the RXR-RAR heterodimers associate with a multiprotein complex containing transcription corepressors that induce histone deacetylation, chromatin condensation and transcriptional suppression. On ligand binding, the corepressors dissociate from the receptors and associate with the coactivators leading to transcriptional activation. The RXRA/PPARA heterodimer is required for PPARA transcriptional activity on fatty acid oxidation genes such as ACOX1 and the cytochrome P450 system genes.[7]
Interactive pathway map
Click on genes, proteins and metabolites below to link to respective articles. [§ 1]
- The interactive pathway map can be edited at WikiPathways: "VitaminDSynthesis_WP1531".
Interactions
Retinoid X receptor alpha has been shown to interact with:
- BCL3,[8]
- BRD8,[9]
- CLOCK,[10]
- FXR[11]
- IGFBP3,[12]
- ITGB3BP,[13]
- LXR-β,[11]
- MyoD,[14]
- NCOA6,[15][16][17][18]
- NFKBIB,[19]
- NPAS2,[10]
- NRIP1,[20][21]
- NR4A1,[22]
- NCOA2,[23]
- NCOA3,[24]
- POU2F1,[25][26]
- PPARGC1A,[27]
- PPAR-γ,[28][29][30]
- RNF8,[31]
- RAR-α,[32][33]
- SHP,[34][35]
- TADA3L,[36]
- TBP,[37]
- TRIM24,[38][39]
- TR-β,[40][41] and
- VDR.[23][42]
See also
References
- GRCh38: Ensembl release 89: ENSG00000186350 - Ensembl, May 2017
- GRCm38: Ensembl release 89: ENSMUSG00000015846 - Ensembl, May 2017
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- "Entrez Gene: RXRA retinoid X receptor, alpha".
- "Retinoic acid receptor RXR-alpha - Homo sapiens (Human)". UniProt.
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Further reading
- Szanto A, Narkar V, Shen Q, Uray IP, Davies PJ, Nagy L (December 2004). "Retinoid X receptors: X-ploring their (patho)physiological functions". Cell Death Differ. 11 Suppl 2: S126–43. doi:10.1038/sj.cdd.4401533. PMID 15608692.
- Heyman RA, Mangelsdorf DJ, Dyck JA, Stein RB, Eichele G, Evans RM, Thaller C (January 1992). "9-cis retinoic acid is a high affinity ligand for the retinoid X receptor". Cell. 68 (2): 397–406. doi:10.1016/0092-8674(92)90479-V. PMID 1310260.
- Kliewer SA, Umesono K, Mangelsdorf DJ, Evans RM (January 1992). "Retinoid X receptor interacts with nuclear receptors in retinoic acid, thyroid hormone and vitamin D3 signalling". Nature. 355 (6359): 446–9. Bibcode:1992Natur.355..446K. doi:10.1038/355446a0. PMC 6159885. PMID 1310351.
- Kliewer SA, Umesono K, Heyman RA, Mangelsdorf DJ, Dyck JA, Evans RM (February 1992). "Retinoid X receptor-COUP-TF interactions modulate retinoic acid signaling". Proc. Natl. Acad. Sci. U.S.A. 89 (4): 1448–52. Bibcode:1992PNAS...89.1448K. doi:10.1073/pnas.89.4.1448. PMC 48468. PMID 1311101.
- Bugge TH, Pohl J, Lonnoy O, Stunnenberg HG (April 1992). "RXR alpha, a promiscuous partner of retinoic acid and thyroid hormone receptors". EMBO J. 11 (4): 1409–18. doi:10.1002/j.1460-2075.1992.tb05186.x. PMC 556590. PMID 1314167.
- Berrodin TJ, Marks MS, Ozato K, Linney E, Lazar MA (September 1992). "Heterodimerization among thyroid hormone receptor, retinoic acid receptor, retinoid X receptor, chicken ovalbumin upstream promoter transcription factor, and an endogenous liver protein". Mol. Endocrinol. 6 (9): 1468–78. doi:10.1210/me.6.9.1468. PMID 1331778.
- Mangelsdorf DJ, Umesono K, Kliewer SA, Borgmeyer U, Ong ES, Evans RM (August 1991). "A direct repeat in the cellular retinol-binding protein type II gene confers differential regulation by RXR and RAR". Cell. 66 (3): 555–61. doi:10.1016/0092-8674(81)90018-0. PMID 1651173.
- Mangelsdorf DJ, Ong ES, Dyck JA, Evans RM (May 1990). "Nuclear receptor that identifies a novel retinoic acid response pathway". Nature. 345 (6272): 224–9. Bibcode:1990Natur.345..224M. doi:10.1038/345224a0. PMID 2159111.
- Oñate SA, Tsai SY, Tsai MJ, O'Malley BW (1995). "Sequence and characterization of a coactivator for the steroid hormone receptor superfamily". Science. 270 (5240): 1354–7. Bibcode:1995Sci...270.1354O. doi:10.1126/science.270.5240.1354. PMID 7481822.
- Chen JD, Evans RM (1995). "A transcriptional co-repressor that interacts with nuclear hormone receptors". Nature. 377 (6548): 454–7. Bibcode:1995Natur.377..454C. doi:10.1038/377454a0. PMID 7566127.
- Schulman IG, Chakravarti D, Juguilon H, Romo A, Evans RM (August 1995). "Interactions between the retinoid X receptor and a conserved region of the TATA-binding protein mediate hormone-dependent transactivation". Proc. Natl. Acad. Sci. U.S.A. 92 (18): 8288–92. Bibcode:1995PNAS...92.8288S. doi:10.1073/pnas.92.18.8288. PMC 41142. PMID 7667283.
- Perlmann T, Jansson L (April 1995). "A novel pathway for vitamin A signaling mediated by RXR heterodimerization with NGFI-B and NURR1". Genes Dev. 9 (7): 769–82. doi:10.1101/gad.9.7.769. PMID 7705655.
- Rastinejad F, Perlmann T, Evans RM, Sigler PB (1995). "Structural determinants of nuclear receptor assembly on DNA direct repeats". Nature. 375 (6528): 203–11. Bibcode:1995Natur.375..203R. doi:10.1038/375203a0. PMID 7746322.
- Forman BM, Umesono K, Chen J, Evans RM (1995). "Unique response pathways are established by allosteric interactions among nuclear hormone receptors". Cell. 81 (4): 541–50. doi:10.1016/0092-8674(95)90075-6. PMID 7758108.
- Seol W, Choi HS, Moore DD (1995). "Isolation of proteins that interact specifically with the retinoid X receptor: two novel orphan receptors". Mol. Endocrinol. 9 (1): 72–85. doi:10.1210/mend.9.1.7760852. PMID 7760852.
- Bourguet W, Ruff M, Chambon P, Gronemeyer H, Moras D (June 1995). "Crystal structure of the ligand-binding domain of the human nuclear receptor RXR-alpha". Nature. 375 (6530): 377–82. Bibcode:1995Natur.375..377B. doi:10.1038/375377a0. PMID 7760929.
- Lee JW, Choi HS, Gyuris J, Brent R, Moore DD (February 1995). "Two classes of proteins dependent on either the presence or absence of thyroid hormone for interaction with the thyroid hormone receptor". Mol. Endocrinol. 9 (2): 243–54. doi:10.1210/me.9.2.243. PMID 7776974.
- Tontonoz P, Graves RA, Budavari AI, Erdjument-Bromage H, Lui M, Hu E, Tempst P, Spiegelman BM (December 1994). "Adipocyte-specific transcription factor ARF6 is a heterodimeric complex of two nuclear hormone receptors, PPAR gamma and RXR alpha". Nucleic Acids Res. 22 (25): 5628–34. doi:10.1093/nar/22.25.5628. PMC 310126. PMID 7838715.
- Lee JW, Ryan F, Swaffield JC, Johnston SA, Moore DD (March 1995). "Interaction of thyroid-hormone receptor with a conserved transcriptional mediator". Nature. 374 (6517): 91–4. Bibcode:1995Natur.374...91L. doi:10.1038/374091a0. PMID 7870181.
- Lee MS, Sem DS, Kliewer SA, Provencal J, Evans RM, Wright PE (September 1994). "NMR assignments and secondary structure of the retinoid X receptor alpha DNA-binding domain. Evidence for the novel C-terminal helix". Eur. J. Biochem. 224 (2): 639–50. doi:10.1111/j.1432-1033.1994.00639.x. PMID 7925381.
External links
This article incorporates text from the United States National Library of Medicine, which is in the public domain.