抗KAT3B/p300 (RW128)抗体 | Anti-KAT3B/p300 (RW128) Antibody

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	Western Blot: KAT3B/p300 Antibody (RW128) [NB100-507] - Detection of p300 in a HeLa nuclear extract using NB 100-507 (1:250). ECL: 15 second exposure.
	Immunocytochemistry/Immunofluorescence: KAT3B/p300 Antibody (RW128) [NB100-507] - HeLa cells were fixed for 10 minutes using 10% formalin and then permeabilized for 5 minutes using 1X PBS + 0.5% Triton-X100. The cells were incubated with anti-KAT3B/p300 (RW128) at 5 ug/ml overnight at 4C and detected with an anti-mouse Dylight 488 (Green) at a 1:500 dilution. Nuclei were counterstained with DAPI (Blue). Cells were imaged using a 40X objective.
	Flow (Intracellular): KAT3B/p300 Antibody (RW128) [NB100-507] - An intracellular stain was performed on THP-1 cells with KAT3B/p300 (RW128) antibody NB100-507 (blue) and a matched isotype control NBP2-27287 (orange). Cells were fixed with 4% PFA and permeabilized with 0.1% Saponin. Cells were incubated in an antibody dilution of 1 ug/mL for 30 minutes at room temperature, followed by mouse F(ab)2 IgG (H+L) APC-conjugated secondary antibody (F0101B, R&D Systems).

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Background

In eukaryotic genome, the chromatin dynamicity is crucial for regulation of processes requiring access to genetic information and it is regulated by several different factors including post-translational modifications of histone/non-histone components, especially via acetylation process which is catalyzed by enzymes known as lysine acetyltransferases (KATs). Among different KATs, KAT3B/ p300 and its homologue KAT3A/CBP (CREB-binding protein) are extensively studied KATs with well known cellular functions. KAT3B/ p300 and KAT3A/CBP have been shown to directly interact with several different DNA-binding transcription factors which includes nuclear hormone receptors, CREB, c-Fos, C-Jun/v-Jun, c-Myb/v-Myb, TFIIB and MyoD. Moreover, both KAT3B/p300 and KAT3A/CBP have been shown to exert HAT (histone acetyltransferase) activity, capable of acetylating all four core histone particles in nucleosomes and to play a key role in activating chromatin for transcription. KAT3B/p300 is a potent transcriptional coactivator that has been shown to regulate various biological processes such as cellular proliferation, differentiation, cell cycle, apoptosis, and response to genetic damage, and KAT3B/ p300 dysfunction interfering with these processes implicates in the pathogenesis of several diseases such as cancer, cardiac diseases, diabetes mellitus, and HIV.

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