Human KAT3B / p300 ELISA Kit (RMEK-0152762)
Cat. No.: RMEK-0152762
Category: ELISA Kits
INQUIRY
1 x 96 tests
Human KAT3B ELISA kit is a single-wash 90 min sandwich ELISA designed for the quantitative measurement of Human KAT3B protein in human cell culture samples. The technology employs capture antibodies conjugated to an affinity tag that is recognized by the monoclonal antibody used to coat our plates. This approach to sandwich ELISA allows the formation of the antibody-analyte sandwich complex in a single step, significantly reducing assay time.
Product Features
| Species Reactivity | Human |
|---|---|
| Detection Method | Colorimetric |
| Assay Duration | One step assay |
| Assay Time | 1.5 h |
| Assay Type | Sandwich (quantitative) |
| Precision | Intra-Assay-Extract-8-7.1%; Inter-Assay-Extract-3-4.9% |
| Sensitivity | 51 pg/mL |
| Range | 94 pg/mL - 6000 pg/mL |
| Sample Type | Cell culture extracts, Cell Lysate |
| Recovery | Cell culture extracts-109-105% - 115%; Cell Lysate-104-101% - 112% |
| Key Features | One-wash 90 minute protocol; Sensitivity: 51 pg/mL; Range: 94 pg/mL - 6000 pg/mL; Sample type: Cell culture extracts, Cell Lysate; Detection method: Colorimetric; Assay type: Sandwich (quantitative); Reacts with: Human |
Target Information
| Target Symbol | EP300 |
|---|---|
| UniProt ID | Q09472 |
| Biomarker of SCs/CSCs | Colon Cancer |
| 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. |
| Cellular Localization | Cytoplasm. Nucleus. In the presence of ALX1 relocalizes from the cytoplasm to the nucleus. Colocalizes with ROCK2 in the nucleus. |
| 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. |
| Post-transcriptional 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. |
| Involvement in Disease | Defects in EP300 may play a role in epithelial cancer. Chromosomal aberrations involving EP300 may be a cause of acute myeloid leukemias. Translocation t(8; 22)(p11; q13) with KAT6A. Rubinstein-Taybi syndrome 2 |
Storage & Shipping
| Storage | Store at 2-8°C |
|---|---|
| Shipping | Gel Packs |
| Stability | The stability of kit is determined by the loss rate of activity. The loss rate of this kit is less than 5% within the expiration date under appropriate storage condition. |
For research use only. Not for clinical use.
