Rabbit Polyclonal CDK8 antibody. Suitable for IHC-P, WB and reacts with Mouse, Human samples. Cited in 1 publication. Immunogen corresponding to Synthetic Peptide within Human CDK8.
IgG
Rabbit
pH: 7
Preservative: 0.01% Thimerosal (merthiolate)
Constituents: 10% Glycerol (glycerin, glycerine), 1.21% Tris, 0.75% Glycine
Liquid
Polyclonal
IHC-P | WB | |
---|---|---|
Human | Expected | Tested |
Mouse | Tested | Expected |
Species | Dilution info | Notes |
---|---|---|
Species Mouse | Dilution info 1/100 - 1/1000 | Notes Perform heat-mediated antigen retrieval with citrate buffer pH 6 before commencing with IHC staining protocol. |
Species | Dilution info | Notes |
---|---|---|
Species Human | Dilution info Use at an assay dependent concentration. | Notes - |
Species | Dilution info | Notes |
---|---|---|
Species Human | Dilution info 1/500 - 1/3000 | Notes - |
Species | Dilution info | Notes |
---|---|---|
Species Mouse | Dilution info Use at an assay dependent concentration. | Notes - |
Component of the Mediator complex, a coactivator involved in regulated gene transcription of nearly all RNA polymerase II-dependent genes. Mediator functions as a bridge to convey information from gene-specific regulatory proteins to the basal RNA polymerase II transcription machinery. Mediator is recruited to promoters by direct interactions with regulatory proteins and serves as a scaffold for the assembly of a functional pre-initiation complex with RNA polymerase II and the general transcription factors. Phosphorylates the CTD (C-terminal domain) of the large subunit of RNA polymerase II (RNAp II), which may inhibit the formation of a transcription initiation complex. Phosphorylates CCNH leading to down-regulation of the TFIIH complex and transcriptional repression. Recruited through interaction with MAML1 to hyperphosphorylate the intracellular domain of NOTCH, leading to its degradation.
Cyclin-dependent kinase 8, Cell division protein kinase 8, Mediator complex subunit CDK8, Mediator of RNA polymerase II transcription subunit CDK8, Protein kinase K35, CDK8
Rabbit Polyclonal CDK8 antibody. Suitable for IHC-P, WB and reacts with Mouse, Human samples. Cited in 1 publication. Immunogen corresponding to Synthetic Peptide within Human CDK8.
IgG
Rabbit
pH: 7
Preservative: 0.01% Thimerosal (merthiolate)
Constituents: 10% Glycerol (glycerin, glycerine), 1.21% Tris, 0.75% Glycine
Liquid
Polyclonal
Affinity purification Immunogen
Blue Ice
1-2 weeks
+4°C
-20°C
Upon delivery aliquot
Avoid freeze / thaw cycle
Abcam is leading the way to address reproducibility in scientific research with our highly validated recombinant monoclonal and recombinant multiclonal antibodies. Search & select one of Abcam's thousands of recombinant alternatives to eliminate batch-variability and unnecessary animal use.
If you do not find a host species to meet your needs, our catalogue and custom Chimeric range provides scientists the specificity of Abcam's RabMAbs in the species backbone of your choice. Remember to also review our range of edited cell lines, proteins and biochemicals relevant to your target that may help you further your research goals.
Abcam antibodies are extensively validated in a wide range of species and applications, so please check the reagent specifications meet your scientific needs before purchasing. If you have any questions or bespoke requirements, simply visit the Contact Us page to send us an inquiry or contact our Support Team ahead of purchase.
This supplementary information is collated from multiple sources and compiled automatically.
Cdk8 also known as Cyclin-dependent kinase 8 forms an important component of the transcription regulation machinery. It has a molecular mass of about 66 kDa and is widely expressed in various tissues though its abundance can vary. Cdk8 operates largely in the nucleus of cells where it participates in regulating gene expression. Cdk8 acts as a kinase by modifying other proteins through phosphorylation which alters their activity and function.
Cdk8 plays a critical role in modulating transcriptional responses. It does this by becoming part of the Mediator complex which is essential for transcription regulation by RNA Polymerase II. The Mediator complex where Cdk8 acts as a kinase influences the initiation and regulation of gene expression. Cdk8 phosphorylates several transcription factors and other components affecting their ability to activate or repress transcription.
Cyclin-dependent kinase 8 functions prominently in the Wnt/β-catenin signaling and Notch signaling pathways both essential for development and cell differentiation. In the Wnt pathway it interacts closely with proteins like β-catenin to influence gene activation. In the Notch pathway it modulates transcription factors related to cellular differentiation processes. These interactions underline its role as a regulator in carefully managing cellular responses to signaling cues.
Cdk8 has been implicated in cancer and congenital disorders. Its overactivity can lead to uncontrolled cell growth contributing to tumor progression notably in colorectal cancer where it affects genes in the Wnt pathway. Beyond cancer its dysfunction links to congenital heart defects where it affects cardiogenesis-associated proteins such as NOTCH1. Cdk8’s involvement in these pathways highlights its part in both regular development and disease pathogenesis.
We have tested this species and application combination and it works. It is covered by our product promise.
We have not tested this specific species and application combination in-house, but expect it will work. It is covered by our product promise.
This species and application combination has not been tested, but we predict it will work based on strong homology. However, this combination is not covered by our product promise.
We do not recommend this combination. It is not covered by our product promise.
We are dedicated to supporting your work with high quality reagents and we are here for you every step of the way should you need us.
In the unlikely event of one of our products not working as expected, you are covered by our product promise.
Full details and terms and conditions can be found here:
Terms & Conditions.
10% SDS-PAGE
All lanes: Western blot - Anti-Cdk8 antibody (ab272879) at 1/3000 dilution
Lane 1: A549 (human lung carcinoma cell line) whole cell lysate at 50 µg
Lane 2: H1299 (human non-small cell lung carcinoma cell line) whole cell lysate at 50 µg
Lane 3: HCT 116 (human colorectal carcinoma cell line) whole cell lysate at 50 µg
Predicted band size: 53 kDa
Paraffin-embedded mouse testis tissue stained for CDK8 using ab272879 at 1/500 dilution in immunohistochemical analysis. Antigen retrieval using citrate buffer, pH 6, 15 minutes.
Please note: All products are 'FOR RESEARCH USE ONLY. NOT FOR USE IN DIAGNOSTIC OR THERAPEUTIC PROCEDURES'.
For licensing inquiries, please contact partnerships@abcam.com