Nucleolar complex protein 2 homolog

Definition:

Acts as an inhibitor of histone acetyltransferase activity; prevents acetylation of all core histones by the EP300/p300 histone acetyltransferase at p53/TP53-regulated target promoters in a histone deacetylases (HDAC)-independent manner. Acts as a transcription corepressor of p53/TP53- and TP63-mediated transactivation of the p21/CDKN1A promoter. Involved in the regulation of p53/TP53-dependent apoptosis. Associates together with TP63 isoform TA*-gamma to the p21/CDKN1A promoter.

References:

[1]. Philip Hublitz, et al. NIR is a novel INHAT repressor that modulates the transcriptional activity of p53. Genes Dev. 2005 Dec 1;19(23):2912-24. [Content Brief]

[2]. Liming Wu, et al. Aurora B interacts with NIR-p53, leading to p53 phosphorylation in its DNA-binding domain and subsequent functional suppression. J Biol Chem. 2011 Jan 21;286(3):2236-44. [Content Brief]

[3]. Kristina Heyne, et al. NIR, an inhibitor of histone acetyltransferases, regulates transcription factor TAp63 and is controlled by the cell cycle. Nucleic Acids Res. 2010 Jun;38(10):3159-71. [Content Brief]

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