Rabbit Polyclonal p300 antibody (STJ97645)

$99.00$319.00

Reactivity: Human, Mouse, Rat
Applications: WB, IHC, ELISA
Conjugation: Unconjugated
Supplier: St John’s Laboratory Ltd.

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Rabbit Polyclonal p300 antibody (STJ97645)

Supplier: St John’s Laboratory Ltd.

Recommended applications: WB, IHC, ELISA

Recommended dilution: WB 1:500-1:2000; IHC-P 1:100-1:300; ELISA 1:10000;

Recommended protocols: check protocols

Image descriptions:

Click or hover above images to see image description for p300 Polyclonal Antibody.

Alternative names:

Check alternative names for the antibody

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EP300 antibody, P300 antibody,|E1A associated protein p300 antibody|E1A binding protein p300 antibody|E1A-associated protein p300 antibody|EP300 antibody|EP300: E1A binding protein p300 antibody|EP300_HUMAN antibody|Histone acetyltransferase p300 antibody|KAT3B antibody|p300 HAT antibody|RSTS2 antibody|Anti-KAT3B / p300 antibody [3G230 / NM-11] – ChIP Grade (ab14984)
SCBT cat No: sc-585|sc-48343|sc-8981|sc-584|sc-32244|sc-56455|sc-160635|

Name

p300 Polyclonal Antibody

Catalogue No.

STJ97645

Reactivity

Human, Mouse, Rat

Specificity

p300 Polyclonal Antibody detects endogenous levels of p300 protein.

Immunogen

Synthesized peptide derived from the Internal region of human p300

Host

Rabbit

Applications

WB, IHC, ELISA

Recommended dilution

WB 1:500-1:2000; IHC-P 1:100-1:300; ELISA 1:10000;

Clonality

Polyclonal

Conjugation

Unconjugated

Isotype

IgG

Formulation

p300 Antibody was tube-contained. Liquid in PBS containing 50% glycerol, 0.5% BSA and 0.02% sodium azide.

Concentration

1 mg/ml

Purification

p300 Antibody was affinity-purified from rabbit antiserum by affinity-chromatography using epitope-specific immunogen.

Storage

-20 Celsius degree. Avoid repeated freeze/thaw cycles.

Alternative antibody names

Histone acetyltransferase p300 antibody, p300 HAT antibody, E1A-associated protein p300 antibody

Database links

Human UniProt/Swiss-Prot:Q09472;Mouse UniPort/Swiss-Prot: B2RWS6;Human Entrez Gene: 2033;Mouse Entrez Gene: 328572;Rat Entrez Gene: Rn.12447

Protein names

Histone acetyltransferase p300 , p300 HAT , E1A-associated protein p300

Protein function

Functions as histone acetyltransferase and regulates transcription via chromatin remodeling. Acetylates all four core histones in nucleosomes. Histone acetylation gives an epigenetic tag for transcriptional activation. Mediates cAMP-gene regulation by binding specifically to phosphorylated CREB protein. Mediates acetylation of histone H3 at ‘Lys-122’ (H3K122ac), a modification that localizes at the surface of the histone octamer and stimulates transcription, possibly by promoting nucleosome instability. Mediates acetylation of histone H3 at ‘Lys-27’ (H3K27ac). Also functions as acetyltransferase for nonhistone targets. Acetylates ‘Lys-131’ of ALX1 and acts as its coactivator. Acetylates SIRT2 and is proposed to indirectly increase the transcriptional activity of TP53 through acetylation and subsequent attenuation of SIRT2 deacetylase function. Acetylates HDAC1 leading to its inactivation and modulation of transcription. Acts as a TFAP2A-mediated transcriptional coactivator in presence of CITED2. Plays a role as a coactivator of NEUROD1-dependent transcription of the secretin and p21 genes and controls terminal differentiation of cells in the intestinal epithelium. Promotes cardiac myocyte enlargement. Can also mediate transcriptional repression. Binds to and may be involved in the transforming capacity of the adenovirus E1A protein. In case of HIV-1 infection, it is recruited by the viral protein Tat. Regulates Tat’s transactivating activity and may help inducing chromatin remodeling of proviral genes. Acetylates FOXO1 and enhances its transcriptional activity. Acetylates BCL6 wich disrupts its ability to recruit histone deacetylases and hinders its transcriptional repressor activity. Participates in CLOCK or NPAS2-regulated rhythmic gene transcription; exhibits a circadian association with CLOCK or NPAS2, correlating with increase in PER1/2 mRNA and histone H3 acetylation on the PER1/2 promoter. Acetylates MTA1 at ‘Lys-626’ which is essential for its transcriptional coactivator activity . Acetylates XBP1 isoform 2; acetylation increases protein stability of XBP1 isoform 2 and enhances its transcriptional activity . Acetylates PCNA; acetylation promotes removal of chromatin-bound PCNA and its degradation during nucleotide excision repair (NER) . Acetylates MEF2D. / Acetyl-CoA + [histone] = CoA + acetyl-[histone].

Involvement in disease

Note: Defects in EP300 may play a role in epithelial cancer.; Note: Chromosomal aberrations involving EP300 may be a cause of acute myeloid leukemias. Translocation t(8;22)(p11;q13) with KAT6A.; Rubinstein-Taybi syndrome 2 (RSTS2) [MIM:613684]: A disorder characterized by craniofacial abnormalities, postnatal growth deficiency, broad thumbs, broad big toes, mental retardation and a propensity for development of malignancies. Some individuals with RSTS2 have less severe mental impairment, more severe microcephaly, and a greater degree of changes in facial bone structure than RSTS1 patients. . Note: The disease is caused by mutations affecting the gene represented in this entry.

Protein sequence and domain

The CRD1 domain (cell cycle regulatory domain 1) mediates transcriptional repression of a subset of p300 responsive genes; it can be de-repressed by CDKN1A/p21WAF1 at least at some promoters. It conatins sumoylation and acetylation sites and the same lysine residues may be targeted for the respective modifications. It is proposed that deacetylation by SIRT1 allows sumoylation leading to suppressed activity. / Contains 1 bromo domain. / Contains 1 CBP/p300-type HAT (histone acetyltransferase) domain. / Contains 1 KIX domain. / Contains 2 TAZ-type zinc fingers. / Contains 1 ZZ-type zinc finger.

Protein post-translational modifications

Acetylated on Lys at up to 17 positions by intermolecular autocatalysis. Deacetylated in the transcriptional repression domain (CRD1) by SIRT1, preferentially at Lys-1020. Deacetylated by SIRT2, preferentially at Lys-418, Lys-423, Lys-1542, Lys-1546, Lys-1549, Lys-1699, Lys-1704 and Lys-1707. / Citrullinated at Arg-2142 by PADI4, which impairs methylation by CARM1 and promotes interaction with NCOA2/GRIP1. / Methylated at Arg-580 and Arg-604 in the KIX domain by CARM1, which blocks association with CREB, inhibits CREB signaling and activates apoptotic response. Also methylated at Arg-2142 by CARM1, which impairs interaction with NCOA2/GRIP1. / Sumoylated; sumoylation in the transcriptional repression domain (CRD1) mediates transcriptional repression. Desumoylated by SENP3 through the removal of SUMO2 and SUMO3. / Probable target of ubiquitination by FBXO3, leading to rapid proteasome-dependent degradation. / Phosphorylated by HIPK2 in a RUNX1-dependent manner. This phosphorylation that activates EP300 happens when RUNX1 is associated with DNA and CBFB. Phosphorylated by ROCK2 and this enhances its activity. Phosphorylation at Ser-89 by AMPK reduces interaction with nuclear receptors, such as PPARG.

Protein cellular localization

Cytoplasm / Nucleus

Research area

All research areas>Transcription Regulators>p300
(View all antibody categories related to Transcription Regulators)

Note

AntibodyPlus can customize p300 Antibody according to your requirement, including bulk product size,etc. Please contact info@antibodyplus.com. AntibodyPlus provide antibody trial sample for your own antibody validation and collects antibody reviews.

Supplier

St John’s Laboratory Ltd.

Product type

Primary antibody

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Immunofluorescence analysis of Rat kidney tissue

1: p300 Polyclonal Antibody(red) was diluted at 1:200 (4 degree Celsius,overnight).
2: Cy3 labled Secondary antibody was diluted at 1:300 (room temperature, 50min).
3: Picture B: DAPI(blue) 10min. Picture A:Target. Picture B: DAPI. Picture C: merge of A+B.
 

Immunofluorescence analysis of Rat kidney tissue

1: p300 Polyclonal Antibody(red) was diluted at 1:200 (4 degree Celsius,overnight).
2: Cy3 labled Secondary antibody was diluted at 1:300 (room temperature, 50min).
3: Picture B: DAPI(blue) 10min. Picture A:Target. Picture B: DAPI. Picture C: merge of A+B.
 

Immunohistochemical analysis of paraffin embedded Human uterus tissue

1: p300 Polyclonal Antibody was diluted at 1:200 (4 degree Celsius,overnight).
2: Sodium citrate pH 6.0 was used for antibody retrieval (>98 degree Celsius,20min).
3: Secondary antibody was diluted at 1:200 (room temperature, 30min). Negative control was used by secondary antibody only.
 

Immunohistochemical analysis of paraffin embedded Rat kidney tissue

1: p300 Polyclonal Antibody was diluted at 1:200 (4 degree Celsius,overnight).
2: Sodium citrate pH 6.0 was used for antibody retrieval (>98 degree Celsius,20min).
3: Secondary antibody was diluted at 1:200 (room temperature, 30min). Negative control was used by secondary antibody only.
 

Immunohistochemical analysis of paraffin embedded Rat spleen tissue

1: p300 Polyclonal Antibody was diluted at 1:200 (4 degree Celsius,overnight).
2: Sodium citrate pH 6.0 was used for antibody retrieval (>98 degree Celsius,20min).
3: Secondary antibody was diluted at 1:200 (room temperature, 30min). Negative control was used by secondary antibody only.
 

Immunohistochemical analysis of paraffin embedded Mouse heart tissue

1: p300 Polyclonal Antibody was diluted at 1:200 (4 degree Celsius,overnight).
2: Sodium citrate pH 6.0 was used for antibody retrieval (>98 degree Celsius,20min).
3: Secondary antibody was diluted at 1:200 (room temperature, 30min). Negative control was used by secondary antibody only.
 

Immunohistochemical analysis of paraffin embedded Mouse lung tissue

1: p300 Polyclonal Antibody was diluted at 1:200 (4 degree Celsius,overnight).
2: Sodium citrate pH 6.0 was used for antibody retrieval (>98 degree Celsius,20min).
3: Secondary antibody was diluted at 1:200 (room temperature, 30min). Negative control was used by secondary antibody only.
 

Immunohistochemical analysis of paraffin embedded Mouse kidney tissue

1: p300 Polyclonal Antibody was diluted at 1:200 (4 degree Celsius,overnight).
2: Sodium citrate pH 6.0 was used for antibody retrieval (>98 degree Celsius,20min).
3: Secondary antibody was diluted at 1:200 (room temperature, 30min). Negative control was used by secondary antibody only.


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