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p300 (E83) pAb

Cat no: BS1562

p300 (E83) pAb

Cyclic AMP-regulated gene expression frequently involves a DNA element designated the cAMP-regulated enhancer (CRE). Many transcription factors, including the protein CREB, which is activated as a result of phosphorylation by protein kinase A, bind to this element. It has been shown that protein kinase A-mediated CREB phosphorylation results in its binding to a 265 kDa nuclear protein designated CBP (for CREB-binding protein). These findings suggest that CBP has many of the properties expected of a CREB co-activator. Another high molecular weight transcriptional adapter protein, designated p300, is characterized by three cysteine- and histidine-rich regions, of which the most carboxy terminal region specifically binds the adenovirus E1A protein. p300 molecules lacking an intact E1A binding site bypass E1A repression even in the presence of high concentrations of E1A. Sequence analysis of CBP and p300 has revealed substantial homology, arguing that these proteins are members of a conserved family of co-activators.

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SPECIFICATIONS

Catalog Number

BS1562

Size

100ug/100ul

Applications

IHC, WB

Hosts

Rabbit

Reactivities

Hum, Mouse, Rat

Form

liquid

Purity

The antibody was affinity-purified from rabbit antiserum by affinity-chromatography using epitope-specific immunogen and the purity is > 95% (by SDS-PAGE).

Antigen

Synthetic peptide, corresponding to amino acids 50-100 of Humanp300.

Species

p300 (E83) pAb detects endogenous levels of p300 protein.

Dilutions

WB: 1:500~1:1000\nIHC: 1:50~1:200

Swiss Prot

Q09472

Storage Temp

Store at 4 degrees C short term. Aliquot and store at -20 degrees C long term. Avoid freeze-thaw cycles.

Concentration

1ug/ul

Storage Buffer

1 mg/ml in Phosphate buffered saline (PBS) with 0.05% sodium azide, approx. pH 7.2.

Additional Info

For research use only, not for use in diagnostic procedure.

Molecular Weight

~265 kDa

Alternative Names

p300; p300 HAT; EC 2.3.1.48; E1A-associated protein p300; p300; P300

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