WB, IP, ChIP
H M R Mk
Endogenous
80
Rabbit IgG
#Q9NVC6
9440
Product Information
Product Usage Information
| Application | Dilution |
|---|---|
| Western Blotting | 1:1000 |
| Immunoprecipitation | 1:200 |
| Chromatin IP | 1:50 |
Storage
Specificity / Sensitivity
Species Reactivity:
Human, Mouse, Rat, Monkey
Source / Purification
Monoclonal antibody is produced by immunizing animals with a synthetic peptide corresponding to residues surrounding Gly272 of human MED17 protein.
Background
The mammalian Mediator complex is a multi-subunit protein complex that acts to relay signals from transcription factors to RNA polymerase II (Pol II) and the basal transcription machinery. In other words, Mediator acts as a centralized hub or integrator for transcriptional regulation (reviewed in 1,2). Multiple studies have shown that Mediator functions include epigenetic regulation, transcriptional elongation, transcription termination, mRNA processing, non-coding RNA activation, and super-enhancer formation. Through these functions, Mediator contributes to the regulation of many biological processes, including insulin signaling (3), NF-κB-dependent signaling (4), stem cell pluripotency and self-renewal (5,6), and proliferation of colon cancer cells (7,8). The Mediator complex consists of 31 protein subunits and can be divided into four distinct modules: the head, middle, tail, and CDK8 kinase module. The CDK8 kinase module contains the CDK8, cyclin C, MED12, and MED13 subunits and is thought to act as a molecular switch, phosphorylating the C-terminal domain (CTD) of Rpb1, the large subunit of Pol II, to inhibit Pol II recruitment and transcription initiation (9,10).
MED17, along with MED6, 8, 11, 18, 20, and 22, make up the head module of the Mediator complex (11). MED17 is critical for head module assembly as it acts as a scaffold to recruit MED11 and MED22 (12). Phosphorylation of MED17 has been shown as a regulatory mechanism in lipogenesis and NF-κB signaling (13,14).
- Malik, S. and Roeder, R.G. (2005) Trends Biochem Sci 30, 256-63.
- Soutourina, J. (2018) Nat Rev Mol Cell Biol 19, 262-274.
- Wang, W. et al. (2009) Dev Cell 16, 764-71.
- van Essen, D. et al. (2009) PLoS Biol 7, e73.
- Tutter, A.V. et al. (2009) J Biol Chem 284, 3709-18.
- Varelas, X. et al. (2008) Nat Cell Biol 10, 837-48.
- Firestein, R. et al. (2008) Nature 455, 547-51.
- Morris, E.J. et al. (2008) Nature 455, 552-6.
- Knuesel, M.T. et al. (2009) Mol Cell Biol 29, 650-61.
- Knuesel, M.T. et al. (2009) Genes Dev 23, 439-51.
- Takagi, Y. et al. (2006) Mol Cell 23, 355-64.
- Imasaki, T. et al. (2011) Nature 475, 240-3.
- Viscarra, J.A. et al. (2017) Sci Signal 10, .
- Mashukova, A. et al. (2021) Mol Biol Cell 32, 690-702.
Species Reactivity
Species reactivity is determined by testing in at least one approved application (e.g., western blot).
Western Blot Buffer
IMPORTANT: For western blots, incubate membrane with diluted primary antibody in 5% w/v BSA, 1X TBS, 0.1% Tween® 20 at 4°C with gentle shaking, overnight.
Applications Key
WB: Western Blotting IP: Immunoprecipitation ChIP: Chromatin IP
Cross-Reactivity Key
H: human M: mouse R: rat Hm: hamster Mk: monkey Vir: virus Mi: mink C: chicken Dm: D. melanogaster X: Xenopus Z: zebrafish B: bovine Dg: dog Pg: pig Sc: S. cerevisiae Ce: C. elegans Hr: horse GP: Guinea Pig Rab: rabbit All: all species expected
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