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proteins. Page last changed on 01 Mar 2015.
E1A binding protein p300
This gene encodes the adenovirus E1A-associated cellular p300 transcriptional co-activator protein. It functions as histone acetyltransferase that regulates transcription via chromatin remodeling and is important in the processes of cell proliferation and differentiation. It mediates cAMP-gene regulation by binding specifically to phosphorylated CREB protein. This gene has also been identified as a co-activator of HIF1A (hypoxia-inducible factor 1 alpha), and thus plays a role in the stimulation of hypoxia-induced genes such as VEGF. Defects in this gene are a cause of Rubinstein-Taybi syndrome and may also play a role in epithelial cancer. [provided by RefSeq, Jul 2008] (from
Kee et al., Chicago, United States. In J Immunol, 20 Mar 2015
In contrast, the canonical Notch signaling pathway prevents the recruitment of p300 to the putative Ccr9 enhancers, resulting in decreased acetylation of histone H3 and a failure to recruit RNA polymerase II to the Ccr9 promoter.
Knox et al., Nottingham, United Kingdom. In Am J Physiol Lung Cell Mol Physiol, 20 Mar 2015
ASM cells from asthmatic donors had increased histone H3 acetylation, specifically histone H3K18 acetylation, and increased binding of histone acetyltransferase (HAT) p300 compared to non-asthmatics but no differences in CXCL8 DNA methylation.
Cancer Genome Atlas Network, In Nature, 01 Mar 2015
A subgroup of oral cavity tumours with favourable clinical outcomes displayed infrequent copy number alterations in conjunction with activating mutations of HRAS or PIK3CA, coupled with inactivating mutations of CASP8, NOTCH1 and TP53.
Tanaka et al., Tokyo, Japan. In J Ren Nutr, Jan 2015
IS impedes the recruitment of transcriptional coactivators to HIF via upregulation of Cbp/p300-interacting transactivator with Glu/Asp-rich carboxy-terminal domain 2 through a mechanism of posttranscriptional messenger RNA stabilization.
Califano et al., Baltimore, United States. In Ann N Y Acad Sci, Dec 2014
Emphasis is placed on the therapeutic implications of genes frequently altered in HNSCCs (i.e., TP53, PIK3CA, and NOTCH1) and their corresponding pathways, with a particular focus on recent findings of Notch signaling pathway activation in HNSCC.
Yang et al., Houston, United States. In Cell, Dec 2014
BCAR4 binding of SNIP1 and PNUTS in response to CCL21 releases the SNIP1's inhibition of p300-dependent histone acetylation, which in turn enables the BCAR4-recruited PNUTS to bind H3K18ac and relieve inhibition of RNA Pol II via activation of the PP1 phosphatase.
Bruserud et al., Bergen, Norway. In Molecules, 2013
Secondly, high CDC25B expression is associated with resistance against the antiproliferative effect of PI3K-Akt-mTOR inhibitors in primary human AML cells, and inhibition of this isoform seems to reduce AML cell line proliferation through effects on NFκB and p300.
Epstein et al., Philadelphia, United States. In Circulation, 2012
In an in vitro assay in newborn cardiomyocytes, recombinant Notch1 activation caused global changes in the transcriptome & in action potential characteristics, consistent with reprogramming to a conduction-like phenotype.
Kawakami T et al., In European Journal of Medical Research, 2005
... examination was carried out using a DAKO EnVision™+Kit (Dako Cytomation, Glostrup, Denmark) with the following 2 antibodies: Notch1 rabbit polyclonal antibody (ab27526, Abcam plc, Cambridge; dilution: 1/1000; ...