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Retinoic acid receptor: Wikis

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retinoic acid receptor alpha
Identifiers
Symbol RARA
Entrez 5914
HUGO 9864
OMIM 180240
RefSeq NM_000964
UniProt P10276
Other data
Locus Chr. 17 q12
retinoic acid receptor beta
Identifiers
Symbol RARB
Entrez 5915
HUGO 9865
OMIM 180220
RefSeq NM_000965
UniProt P10826
Other data
Locus Chr. 3 p24
retinoic acid receptor gamma
Identifiers
Symbol RARG
Entrez 5916
HUGO 9866
OMIM 180190
RefSeq NM_000966
UniProt P13631
Other data
Locus Chr. 12 q13

The retinoic acid receptor (RAR) is a type of nuclear receptor[1] which is activated by both all-trans retinoic acid and 9-cis retinoic acid.[2] There are three retinoic acid receptors (RAR), RAR-alpha, RAR-beta, and RAR-gamma encoded by the RARA, RARB, RARG genes respectively. Each receptor isoform has several splice variants: two- for alpha, four- for beta and two- for gamma.

As with other type II nuclear receptors, RAR heterodimerizes with RXR and in the absence of ligand, the RAR/RXR dimer binds to hormone response elements complexed with corepressor protein. Binding of agonist ligands to RAR results in dissociation of corepressor and recruitment of coactivator protein which in turn promotes transcription of the downstream target gene into mRNA and eventually protein.

See also

References

  1. ^ Germain P, Chambon P, Eichele G, Evans RM, Lazar MA, Leid M, De Lera AR, Lotan R, Mangelsdorf DJ, Gronemeyer H (2006). "International Union of Pharmacology. LX. Retinoic acid receptors". Pharmacol Rev 58 (4): 712–25. doi:10.1124/pr.58.4.4. PMID 17132850.  
  2. ^ Allenby G, Bocquel MT, Saunders M, Kazmer S, Speck J, Rosenberger M, Lovey A, Kastner P, Grippo JF, Chambon P, Levin AA (1993). "Retinoic acid receptors and retinoid X receptors: interactions with endogenous retinoic acids". Proc Natl Acad Sci USA 90 (1): 30–4. doi:10.1073/pnas.90.1.30. PMID 8380496.  

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