Biology:Nuclear receptor coactivator 2

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Short description: Protein-coding gene in the species Homo sapiens


A representation of the 3D structure of the protein myoglobin showing turquoise α-helices.
Generic protein structure example

The nuclear receptor coactivator 2 also known as NCoA-2 is a protein that in humans is encoded by the NCOA2 gene. NCoA-2 is also frequently called glucocorticoid receptor-interacting protein 1 (GRIP1), steroid receptor coactivator-2 (SRC-2), or transcriptional mediators/intermediary factor 2 (TIF2).

Function

NCoA-2 is a transcriptional coregulatory protein that contains several nuclear receptor interacting domains and an intrinsic histone acetyltransferase activity. NCOA2 is recruited to DNA promotion sites by ligand-activated nuclear receptors. NCOA2 in turn acetylates histones, which makes downstream DNA more accessible to transcription. Hence, NCOA2 assists nuclear receptors in the upregulation of DNA expression.[1][2]

GRIP1 is a transcriptional co-activator of the glucocorticoid receptor and interferon regulatory factor 1 (IRF1).[3]

Interactions

Nuclear receptor coactivator 2 has been shown to interact with:


References

  1. "TIF2, a 160 kDa transcriptional mediator for the ligand-dependent activation function AF-2 of nuclear receptors". EMBO J 15 (14): 3667–75. 1996. doi:10.1002/j.1460-2075.1996.tb00736.x. PMID 8670870. 
  2. "GRIP1, a transcriptional coactivator for the AF-2 transactivation domain of steroid, thyroid, retinoid, and vitamin D receptors". Mol Cell Biol 17 (5): 2735–44. 1997. doi:10.1128/MCB.17.5.2735. PMID 9111344. 
  3. "Glucocorticoid receptor interacting protein-1 restores glucocorticoid responsiveness in steroid-resistant airway structural cells". Am. J. Respir. Cell Mol. Biol. 42 (1): 9–15. January 2010. doi:10.1165/rcmb.2009-0239RC. PMID 19805480. 
  4. "Antiandrogen effects of mifepristone on coactivator and corepressor interactions with the androgen receptor". Mol. Endocrinol. 18 (1): 70–85. 2004. doi:10.1210/me.2003-0189. PMID 14593076. 
  5. "p54nrb acts as a transcriptional coactivator for activation function 1 of the human androgen receptor". Biochem. Biophys. Res. Commun. 306 (3): 660–5. 2003. doi:10.1016/S0006-291X(03)01021-0. PMID 12810069. 
  6. "Mechanistic relationship between androgen receptor polyglutamine tract truncation and androgen-dependent transcriptional hyperactivity in prostate cancer cells". J. Biol. Chem. 279 (17): 17319–28. 2004. doi:10.1074/jbc.M400970200. PMID 14966121. 
  7. 7.0 7.1 7.2 "Electrostatic modulation in steroid receptor recruitment of LXXLL and FXXLF motifs". Mol. Cell. Biol. 23 (6): 2135–50. 2003. doi:10.1128/MCB.23.6.2135-2150.2003. PMID 12612084. 
  8. "Melanoma antigen gene protein MAGE-11 regulates androgen receptor function by modulating the interdomain interaction". Mol. Cell. Biol. 25 (4): 1238–57. 2005. doi:10.1128/MCB.25.4.1238-1257.2005. PMID 15684378. 
  9. "Recruitment of the NCoA/SRC-1/p160 family of transcriptional coactivators by the aryl hydrocarbon receptor/aryl hydrocarbon receptor nuclear translocator complex". Mol. Cell. Biol. 22 (12): 4319–33. 2002. doi:10.1128/MCB.22.12.4319-4333.2002. PMID 12024042. 
  10. "Phosphopeptide binding specificities of BRCA1 COOH-terminal (BRCT) domains". J. Biol. Chem. 278 (52): 52914–8. 2003. doi:10.1074/jbc.C300407200. PMID 14578343. 
  11. "Breast cancer susceptibility gene 1 (BRCAI) is a coactivator of the androgen receptor". Cancer Res. 60 (21): 5946–9. 2000. PMID 11085509. 
  12. 12.0 12.1 12.2 12.3 "A subfamily of RNA-binding DEAD-box proteins acts as an estrogen receptor alpha coactivator through the N-terminal activation domain (AF-1) with an RNA coactivator, SRA". EMBO J. 20 (6): 1341–52. 2001. doi:10.1093/emboj/20.6.1341. PMID 11250900. 
  13. 13.0 13.1 "The chromatin-remodeling complex WINAC targets a nuclear receptor to promoters and is impaired in Williams syndrome". Cell 113 (7): 905–17. 2003. doi:10.1016/S0092-8674(03)00436-7. PMID 12837248. 
  14. "Interaction of transcriptional intermediary factor 2 nuclear receptor box peptides with the coactivator binding site of estrogen receptor alpha". J. Biol. Chem. 277 (24): 21862–8. 2002. doi:10.1074/jbc.M200764200. PMID 11937504. 
  15. "Recruitment of coactivator glucocorticoid receptor interacting protein 1 to an estrogen receptor transcription complex is regulated by the 3',5'-cyclic adenosine 5'-monophosphate-dependent protein kinase". Endocrinology 149 (9): 4336–45. 2008. doi:10.1210/en.2008-0037. PMID 18499756. 
  16. "Regulation of glucocorticoid receptor activity by 14--3-3-dependent intracellular relocalization of the corepressor RIP140". Mol. Endocrinol. 15 (4): 501–11. 2001. doi:10.1210/mend.15.4.0624. PMID 11266503. 
  17. "Crystal structure of the glucocorticoid receptor ligand binding domain reveals a novel mode of receptor dimerization and coactivator recognition". Cell 110 (1): 93–105. 2002. doi:10.1016/S0092-8674(02)00817-6. PMID 12151000. 
  18. "Interaction between GRIP and liprin-alpha/SYD2 is required for AMPA receptor targeting". Neuron 34 (1): 39–52. 2002. doi:10.1016/S0896-6273(02)00640-2. PMID 11931740. 
  19. "Ligand type-specific interactions of peroxisome proliferator-activated receptor gamma with transcriptional coactivators". J. Biol. Chem. 275 (43): 33201–4. 2000. doi:10.1074/jbc.C000517200. PMID 10944516. 
  20. 20.0 20.1 "Ternary complexes and cooperative interplay between NCoA-62/Ski-interacting protein and steroid receptor coactivators in vitamin D receptor-mediated transcription". J. Biol. Chem. 276 (44): 40614–20. 2001. doi:10.1074/jbc.M106263200. PMID 11514567. 
  21. "Interactions of RXR with coactivators are differentially mediated by helix 11 of the receptor's ligand binding domain". Biochemistry 41 (8): 2500–8. 2002. doi:10.1021/bi011764+. PMID 11851396. 
  22. "Antagonistic action of a 25-carboxylic ester analogue of 1alpha, 25-dihydroxyvitamin D3 is mediated by a lack of ligand-induced vitamin D receptor interaction with coactivators". J. Biol. Chem. 275 (22): 16506–12. 2000. doi:10.1074/jbc.M910000199. PMID 10748178. 

Further reading

External links