- Catalog number
- M00117
- Size / count
- 100 µL
- Dry ice
- No
- Hazardous
- No
- Discontinued
- Yes
- Synonyms
- Histone acetyltransferase p300; p300 HAT;2.3.1.48
- Gene Name
- EP300
- UniProt
- Q09472
- Host
- Mouse
- Reactivity
- Human
- Immunogen
- Purified recombinant fragment of p300 expressed in E. Coli.
- Clonality
- Monoclonal
- Clone
- Clone: 7D8A6
- Applications
- WB, ELISA
- Purification
- Affinity purification
- Concentration
- 1 mg/ml
- Form
- Liquid
- Function
- Functions as histone acetyltransferase and regulates transcription via chromatin remodeling (PubMed:23415232, PubMed:23934153, PubMed:8945521) . Acetylates all four core histones in nucleosomes. Histone acetylation gives an epigenetic tag for transcriptional activation (PubMed:23415232, PubMed:23934153, PubMed:8945521) . 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) (PubMed:23911289) . Also functions as acetyltransferase for non-histone targets, such as ALX1, HDAC1, PRMT1 or SIRT2 (PubMed:12929931, PubMed:16762839, PubMed:18722353) . Acetylates 'Lys-131' of ALX1 and acts as its coactivator (PubMed:12929931) . Acetylates SIRT2 and is proposed to indirectly increase the transcriptional activity of TP53 through acetylation and subsequent attenuation of SIRT2 deacetylase function (PubMed:18722353) . Acetylates HDAC1 leading to its inactivation and modulation of transcription (PubMed:16762839) . Acts as a TFAP2A-mediated transcriptional coactivator in presence of CITED2 (PubMed:12586840) . 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. Acetylates FOXO1 and enhances its transcriptional activity (PubMed:15890677) . Acetylates BCL6 wich disrupts its ability to recruit histone deacetylases and hinders its transcriptional repressor activity (PubMed:12402037) . 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 (PubMed:14645221) . Acetylates MTA1 at 'Lys-626' which is essential for its transcriptional coactivator activity (PubMed:16617102) . Acetylates XBP1 isoform 2; acetylation increases protein stability of XBP1 isoform 2 and enhances its transcriptional activity (PubMed:20955178) . Acetylates PCNA; acetylation promotes removal of chromatin-bound PCNA and its degradation during nucleotide excision repair (NER) (PubMed:24939902) . Acetylates MEF2D (PubMed:21030595) . Acetylates and stabilizes ZBTB7B protein by antagonizing ubiquitin conjugation and degragation, this mechanism may be involved in CD4/CD8 lineage differentiation (PubMed:20810990) . In addition to protein acetyltransferase, can use different acyl-CoA substrates, such as (2E) -butenoyl-CoA (crotonyl-CoA), butanoyl-CoA (butyryl- CoA) or propanoyl-CoA (propionyl-CoA), and is able to mediate protein crotonylation, butyrylation or propionylation, respectively (PubMed:25818647, PubMed:17267393) . Acts as a histone crotonyltransferase; crotonylation marks active promoters and enhancers and confers resistance to transcriptional repressors (PubMed:25818647) . Histone crotonyltransferase activity is dependent on the concentration of (2E) -butenoyl-CoA (crotonyl-CoA) substrate and such activity is weak when (E) -but-2-enoyl-CoA (crotonyl-CoA) concentration is low (PubMed:25818647) . Also acts as a histone butyryltransferase; butyrylation marks active promoters (PubMed:17267393) . Functions as a transcriptional coactivator for SMAD4 in the TGF-beta signaling pathway (PubMed:25514493) .
- Molecular Weight
- 264161 MW
- Shipping Conditions
- Available
- Storage Conditions
- Store at -20°C for one year. For short term storage and frequent use, store at 4°C for up to one month. Avoid repeated freeze-thaw cycles.
- Fragment
- IgG
- Other Gene Names
- Histone acetyltransferase p300
- Subcellular Location
- Cytoplasm
- Protein Name
- Histone acetyltransferase p300
