The protein encoded by this gene contains a RING zinc finger, a motif known to be involved in protein-protein interactions. This protein interacts with androgen receptor (AR) and may function as a coactivator that induces AR target gene expression in prostate. A dominant negative mutant of this gene has been demonstrated to inhibit the AR-mediated growth of prostate cancer. This protein also interacts with class III ubiquitin-conjugating enzymes (E2s) and may act as a ubiquitin-ligase (E3) in the ubiquitination of certain nuclear proteins. Five alternatively spliced transcript variants encoding two distinct isoforms have been reported.[3]
↑ 1.01.1Kang HY, Yeh S, Fujimoto N, Chang C (Apr 1999). "Cloning and characterization of human prostate coactivator ARA54, a novel protein that associates with the androgen receptor". J Biol Chem. 274 (13): 8570–6. doi:10.1074/jbc.274.13.8570. PMID10085091.
↑Ueki N, Seki N, Yano K, Masuho Y, Saito T, Muramatsu M (Jun 1999). "Isolation and characterization of a novel human gene (HFB30) which encodes a protein with a RING finger motif". Biochim Biophys Acta. 1445 (2): 232–6. doi:10.1016/s0167-4781(99)00045-7. PMID10320776.
↑Miyamoto H, Rahman M, Takatera H, Kang HY, Yeh S, Chang HC, Nishimura K, Fujimoto N, Chang C (Feb 2002). "A dominant-negative mutant of androgen receptor coregulator ARA54 inhibits androgen receptor-mediated prostate cancer growth". J. Biol. Chem. 277 (7): 4609–17. doi:10.1074/jbc.M108312200. PMID11673464.
↑He B, Minges JT, Lee LW, Wilson EM (Mar 2002). "The FXXLF motif mediates androgen receptor-specific interactions with coregulators". J. Biol. Chem. 277 (12): 10226–35. doi:10.1074/jbc.M111975200. PMID11779876.
Ueki N, Oda T, Kondo M, Yano K, Noguchi T, Muramatsu M (1999). "Selection system for genes encoding nuclear-targeted proteins". Nat. Biotechnol. 16 (13): 1338–42. doi:10.1038/4315. PMID9853615.
Ito K, Adachi S, Iwakami R, Yasuda H, Muto Y, Seki N, Okano Y (2001). "N-Terminally extended human ubiquitin-conjugating enzymes (E2s) mediate the ubiquitination of RING-finger proteins, ARA54 and RNF8". Eur. J. Biochem. 268 (9): 2725–32. doi:10.1046/j.1432-1327.2001.02169.x. PMID11322894.
Miyamoto H, Rahman M, Takatera H, Kang HY, Yeh S, Chang HC, Nishimura K, Fujimoto N, Chang C (2002). "A dominant-negative mutant of androgen receptor coregulator ARA54 inhibits androgen receptor-mediated prostate cancer growth". J. Biol. Chem. 277 (7): 4609–17. doi:10.1074/jbc.M108312200. PMID11673464.
Ueda T, Mawji NR, Bruchovsky N, Sadar MD (2002). "Ligand-independent activation of the androgen receptor by interleukin-6 and the role of steroid receptor coactivator-1 in prostate cancer cells". J. Biol. Chem. 277 (41): 38087–94. doi:10.1074/jbc.M203313200. PMID12163482.
Mestayer C, Blanchère M, Jaubert F, Dufour B, Mowszowicz I (2003). "Expression of androgen receptor coactivators in normal and cancer prostate tissues and cultured cell lines". Prostate. 56 (3): 192–200. doi:10.1002/pros.10229. PMID12772188.
Yang Z, Chang YJ, Miyamoto H, Ni J, Niu Y, Chen Z, Chen YL, Yao JL, di Sant'Agnese PA, Chang C (2007). "Transgelin functions as a suppressor via inhibition of ARA54-enhanced androgen receptor transactivation and prostate cancer cell growth". Mol. Endocrinol. 21 (2): 343–58. doi:10.1210/me.2006-0104. PMID17082327.
Yang Z, Chang YJ, Miyamoto H, Yeh S, Yao JL, di Sant'Agnese PA, Tsai MY, Chang C (2007). "Suppression of androgen receptor transactivation and prostate cancer cell growth by heterogeneous nuclear ribonucleoprotein A1 via interaction with androgen receptor coregulator ARA54". Endocrinology. 148 (3): 1340–9. doi:10.1210/en.2006-0716. PMID17110431.
Kikuchi H, Uchida C, Hattori T, Isobe T, Hiramatsu Y, Kitagawa K, Oda T, Konno H, Kitagawa M (2007). "ARA54 is involved in transcriptional regulation of the cyclin D1 gene in human cancer cells". Carcinogenesis. 28 (8): 1752–8. doi:10.1093/carcin/bgm120. PMID17510080.
