Many DNA-binding transcriptional activator proteins enhance the initiation rate of RNA polymerase II-mediated gene transcription by interacting functionally with the general transcription machinery bound at the basal promoter. Adaptor proteins are usually required for this activation, possibly to acetylate and destabilize nucleosomes, thereby relieving chromatin constraints at the promoter. The protein encoded by this gene is a transcriptional activator adaptor and has been found to be part of the PCAF histone acetylase complex. In addition, it associates with the tumor suppressor protein p53 and is required for full activity of p53 and p53-mediated apoptosis. At least four alternatively spliced variants have been found for this gene, but the full-length nature of some variants has not been determined.[3]
↑Sulimova G, Kutsenko A, Rakhmanaliev E, Udina I, Kompaniytsev A, Protopopov A, Moisjak E, Klimov E, Muravenko O, Zelenin A, Braga E, Kashuba V, Zabarovsky E, Kisselev L (2002). "Human chromosome 3: integration of 60 NotI clones into a physical and gene map". Cytogenetic and Genome Research. 98: 177–183. doi:10.1159/000069814.
↑ 5.05.1Zeng M, Kumar A, Meng G, Gao Q, Dimri G, Wazer D, Band H, Band V (Nov 2002). "Human papilloma virus 16 E6 oncoprotein inhibits retinoic X receptor-mediated transactivation by targeting human ADA3 coactivator". The Journal of Biological Chemistry. 277 (47): 45611–8. doi:10.1074/jbc.M208447200. PMID12235159.
↑ 6.06.1Rual JF, Venkatesan K, Hao T, Hirozane-Kishikawa T, Dricot A, Li N, Berriz GF, Gibbons FD, Dreze M, Ayivi-Guedehoussou N, Klitgord N, Simon C, Boxem M, Milstein S, Rosenberg J, Goldberg DS, Zhang LV, Wong SL, Franklin G, Li S, Albala JS, Lim J, Fraughton C, Llamosas E, Cevik S, Bex C, Lamesch P, Sikorski RS, Vandenhaute J, Zoghbi HY, Smolyar A, Bosak S, Sequerra R, Doucette-Stamm L, Cusick ME, Hill DE, Roth FP, Vidal M (Oct 2005). "Towards a proteome-scale map of the human protein-protein interaction network". Nature. 437 (7062): 1173–8. doi:10.1038/nature04209. PMID16189514.
Brand M, Yamamoto K, Staub A, Tora L (Jun 1999). "Identification of TATA-binding protein-free TAFII-containing complex subunits suggests a role in nucleosome acetylation and signal transduction". The Journal of Biological Chemistry. 274 (26): 18285–9. doi:10.1074/jbc.274.26.18285. PMID10373431.
Zeng M, Kumar A, Meng G, Gao Q, Dimri G, Wazer D, Band H, Band V (Nov 2002). "Human papilloma virus 16 E6 oncoprotein inhibits retinoic X receptor-mediated transactivation by targeting human ADA3 coactivator". The Journal of Biological Chemistry. 277 (47): 45611–8. doi:10.1074/jbc.M208447200. PMID12235159.
Goehler H, Lalowski M, Stelzl U, Waelter S, Stroedicke M, Worm U, Droege A, Lindenberg KS, Knoblich M, Haenig C, Herbst M, Suopanki J, Scherzinger E, Abraham C, Bauer B, Hasenbank R, Fritzsche A, Ludewig AH, Büssow K, Buessow K, Coleman SH, Gutekunst CA, Landwehrmeyer BG, Lehrach H, Wanker EE (Sep 2004). "A protein interaction network links GIT1, an enhancer of huntingtin aggregation, to Huntington's disease". Molecular Cell. 15 (6): 853–65. doi:10.1016/j.molcel.2004.09.016. PMID15383276.
Meng G, Zhao Y, Nag A, Zeng M, Dimri G, Gao Q, Wazer DE, Kumar R, Band H, Band V (Dec 2004). "Human ADA3 binds to estrogen receptor (ER) and functions as a coactivator for ER-mediated transactivation". The Journal of Biological Chemistry. 279 (52): 54230–40. doi:10.1074/jbc.M404482200. PMID15496419.