Revision 1

#43698Store at -20C

1 Kit

(6 x 20 microliters)

Cell Signaling Technology

Orders: 877-616-CELL (2355) [email protected]

Support: 877-678-TECH (8324)

Web: [email protected] cellsignal.com

3 Trask LaneDanversMassachusetts01923USA
For Research Use Only. Not for Use in Diagnostic Procedures.
Product Includes Product # Quantity Mol. Wt Isotype/Source
MED1 Antibody 51613 20 µl 220 kDa Rabbit 
MED12 (D9K5J) Rabbit mAb 14360 20 µl 240 kDa Rabbit IgG
MED26 (D4B1X) Rabbit mAb 14950 20 µl 70 kDa Rabbit IgG
CDK8 (D6M3J) Rabbit mAb 17395 20 µl 53 kDa Rabbit IgG
Cyclin C (E6V4Z) Rabbit mAb 68179 20 µl 30 kDa Rabbit IgG
Rpb1 NTD (D8L4Y) Rabbit mAb 14958 20 µl 250 kDa Rabbit IgG
Anti-rabbit IgG, HRP-linked Antibody 7074 100 µl Goat 

Please visit cellsignal.com for individual component applications, species cross-reactivity, dilutions, protocols, and additional product information.

Description

The Mediator Complex Antibody Sampler Kit provides an economical means of evaluating total levels of Mediator Complex proteins. The kit includes enough antibodies to perform two western blot experiments with each primary antibody.

Storage

Supplied in 10 mM sodium HEPES (pH 7.5), 150 mM NaCl, 100 µg/ml BSA, 50% glycerol and less than 0.02% sodium azide. Store at –20°C. Do not aliquot the antibodies.

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).

  1. Malik, S. and Roeder, R.G. (2005) Trends Biochem Sci 30, 256-63.
  2. Soutourina, J. (2018) Nat Rev Mol Cell Biol 19, 262-274.
  3. Wang, W. et al. (2009) Dev Cell 16, 764-71.
  4. van Essen, D. et al. (2009) PLoS Biol 7, e73.
  5. Tutter, A.V. et al. (2009) J Biol Chem 284, 3709-18.
  6. Varelas, X. et al. (2008) Nat Cell Biol 10, 837-48.
  7. Firestein, R. et al. (2008) Nature 455, 547-51.
  8. Morris, E.J. et al. (2008) Nature 455, 552-6.
  9. Knuesel, M.T. et al. (2009) Mol Cell Biol 29, 650-61.
  10. Knuesel, M.T. et al. (2009) Genes Dev 23, 439-51.

Background References

    Trademarks and Patents

    Cell Signaling Technology is a trademark of Cell Signaling Technology, Inc.
    All other trademarks are the property of their respective owners. Visit cellsignal.com/trademarks for more information.

    使用に関する制限

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    研究専用 (For Research Use Only) またはこれに類似する表示がされた製品は、 いかなる目的についても FDA または外国もしくは国内のその他の規制機関により承認、認可または許可を受けていません。 お客様は製品を診断もしくは治療目的で使用してはならず、また、製品に表示された内容に違反する方法で使用してはなりません。 CST が販売または使用許諾する製品は、エンドユーザーであるお客様に対し、使途を研究および開発のみに限定して提供されるものです。 診断、予防もしくは治療目的で製品を使用することまたは製品を再販売 (単独であるか他の製品等の一部であるかを問いません) もしくはその他の商業的利用の目的で購入することについては、CST から別途許諾を得る必要があります。 お客様は以下の事項を遵守しなければなりません。(a) CST の製品 (単独であるか他の資材と一緒であるかを問いません) を販売、使用許諾、貸与、寄付もしくはその他の態様で第三者に譲渡したり使用させたりしてはなりません。また、商用の製品を製造するために CST の製品を使用してはなりません。(b) 複製、改変、リバースエンジニアリング、逆コンパイル、 分解または他の方法により製品の構造または技術を解明しようとしてはなりません。また、 CST の製品またはサービスと競合する製品またはサービスを開発する目的で CST の製品を使用してはなりません。(c) CST の製品の商標、商号、ロゴ、特許または著作権に関する通知または表示を除去したり改変したりしてはなりません。(d) CST の製品をCST 製品販売条件(CST’s Product Terms of Sale) および該当する書面のみに従って使用しなければなりません。(e) CST の製品に関連してお客様が使用する第三者の製品またはサービスに関する使用許諾条件、 サービス提供条件またはこれに類する合意事項を遵守しなければなりません。

    Revision 1
    #43698

    Mediator Complex Antibody Sampler Kit

    Mediator Complex Antibody Sampler Kit: Image 1 Expand Image
    Western blot analysis of extracts from various cell lines using MED12 (D9K5J) Rabbit mAb.
    Mediator Complex Antibody Sampler Kit: Image 2 Expand Image
    Western blot analysis of extracts from Raji, HeLa, and Daudi cells using MED26 (D4B1X) Rabbit mAb.
    Mediator Complex Antibody Sampler Kit: Image 3 Expand Image
    Western blot analysis of extracts from HeLa, KNRK, and COS-7 cells using Rpb1 NTD (D8L4Y) Rabbit mAb.
    Mediator Complex Antibody Sampler Kit: Image 4 Expand Image
    Western blot analysis of extracts from HeLa, Raw 264.7, and COS-7 cell lines using CDK8 (D6M3J) Rabbit mAb.
    Mediator Complex Antibody Sampler Kit: Image 5 Expand Image
    Western blot analysis of extracts from various cell lines using MED1 Antibody.
    Mediator Complex Antibody Sampler Kit: Image 6 Expand Image
    Western blot analysis of extracts from various cell lines using Cyclin C (E6V4Z) Rabbit mAb.
    Mediator Complex Antibody Sampler Kit: Image 7 Expand Image
    Confocal immunofluorescent analysis of control HCT 116 cells (left) or CRISPR/Cas9 Cyclin C knockout (KO) HCT 116 cells (right) using Cyclin C (E6V4Z) Rabbit mAb #68179 (green), DyLight 650 Phalloidin #12956 (red), and DAPI #4083 (blue).
    Mediator Complex Antibody Sampler Kit: Image 8 Expand Image
    After the primary antibody is bound to the target protein, a complex with HRP-linked secondary antibody is formed. The LumiGLO® is added and emits light during enzyme catalyzed decomposition.
    Mediator Complex Antibody Sampler Kit: Image 9 Expand Image
    Immunoprecipitation of MED12 from Jurkat cell extracts using Rabbit (DA1E) mAb IgG XP® Isotype Control #3900 (lane 2) or MED12 (D9K5J) Rabbit mAb (lane 3). Lane 1 is 10% input. Western blot analysis was performed using MED12 (D9K5J) Rabbit mAb.
    Mediator Complex Antibody Sampler Kit: Image 10 Expand Image
    Chromatin immunoprecipitations were performed with cross-linked chromatin from Hela cells and Rpb1 NTD (D8L4Y) Rabbit mAb, using SimpleChIP® Enzymatic Chromatin IP Kit (Magnetic Beads) #9003. DNA Libraries were prepared using DNA Library Prep Kit for Illumina Systems (ChIP-seq, CUT&RUN) #56795. The figure shows binding across the ZNF740 gene on chromosome 12. For additional ChIP-seq tracks, please download the product datasheet.
    Mediator Complex Antibody Sampler Kit: Image 11 Expand Image
    Immunoprecipitation of CDK8 from HeLa cell extracts. Lane 1 is 10% input, lane 2 is Rabbit (DA1E) mAb XP® Isotype Control #3900, and lane 3 is CDK8 (D6M3J) Rabbit mAb. Western blot analysis was performed using CDK8 (D6M3J) Rabbit mAb.

    Mouse Anti-rabbit IgG (Conformation Specific) (L27A9) mAb (HRP Conjugate) #5127 was used as a secondary antibody.

    Mediator Complex Antibody Sampler Kit: Image 12 Expand Image
    Immunoprecipitation of MED1 from HeLa cell extracts. Lane 1 is 10% input, lane 2 is Normal Rabbit IgG #2729, and lane 3 is MED1 Antibody. Western blot analysis was performed using MED1 Antibody.
    Mediator Complex Antibody Sampler Kit: Image 13 Expand Image
    Western blot analysis of extracts from control HCT 116 cells (lane 1) or cyclin C knockdown HCT 116 cells (lane 2) using Cyclin C (E6V4Z) Rabbit mAb (upper) or GAPDH (D16H11) XP® Rabbit mAb #5174 (lower). The reduction in signal in the cyclin C knockdown HCT 116 cells confirms specificity of the antibody for cyclin C.
    Mediator Complex Antibody Sampler Kit: Image 14 Expand Image
    Chromatin immunoprecipitations were performed with cross-linked chromatin from HeLa cells heat shocked for 1 hr and either MED26 (D4B1X) Rabbit mAb or of Normal Rabbit IgG #2729 using SimpleChIP® Enzymatic Chromatin IP Kit (Magnetic Beads) #9003. The enriched DNA was quantified by real-time PCR using SimpleChIP® Human c-Myc Intron 1 Primers #14905, SimpleChIP® Human HSP70 Intron 1 Primers #14023, and SimpleChIP® Human α Satellite Repeat Primers #4486. The amount of immunoprecipitated DNA in each sample is represented as signal relative to the total amount of input chromatin, which is equivalent to one.
    Mediator Complex Antibody Sampler Kit: Image 15 Expand Image
    Chromatin immunoprecipitations were performed with cross-linked chromatin from Hela cells and Rpb1 NTD (D8L4Y) Rabbit mAb, using SimpleChIP® Enzymatic Chromatin IP Kit (Magnetic Beads) #9003. DNA Libraries were prepared using DNA Library Prep Kit for Illumina Systems (ChIP-seq, CUT&RUN) #56795. The figure shows binding across chromosome 7 (upper), including ACTB (medium), a known target gene of Rpb1-NTD (see additional figure containing ChIP-qPCR data), and ZNF740 gene on chromosome 12 (lower).
    Mediator Complex Antibody Sampler Kit: Image 16 Expand Image
    Immunoprecipitation of cyclin C protein from HCT 116 cell extracts. Lane 1 is 10% input, lane 2 is Rabbit (DA1E) mAb IgG XP® Isotype Control #3900, and lane 3 is Cyclin C (E6V4Z) Rabbit mAb. Western blot analysis was performed using Cyclin C (E6V4Z) Rabbit mAb. Anti-rabbit IgG, HRP-linked Antibody #7074 was used as the secondary antibody. 
    Mediator Complex Antibody Sampler Kit: Image 17 Expand Image
    Chromatin immunoprecipitations were performed with cross-linked chromatin from HeLa cells and either Rpb1 NTD (D8L4Y) Rabbit mAb or Normal Rabbit IgG #2729 using SimpleChIP® Enzymatic Chromatin IP Kit (Magnetic Beads) #9003. The enriched DNA was quantified by real-time PCR using SimpleChIP® Human GAPDH Exon 1 Primers #5516, SimpleChIP® Human γ-Actin Promoter Primers #5037, SimpleChIP® Human AFM1 Intron 1 Primers #5098, and SimpleChIP® Human α Satellite Repeat Primers #4486. The amount of immunoprecipitated DNA in each sample is represented as signal relative to the total amount of input chromatin, which is equivalent to one.
    Mediator Complex Antibody Sampler Kit: Image 18 Expand Image
    Flow cytometric analysis of HCT 116 cells, either wild-type (green) or cyclin C knockdown (blue), using Cyclin C (E6V4Z) Rabbit mAb (solid lines) or a concentration-matched Rabbit (DA1E) mAb IgG XP® Isotype Control #3900 (dashed lines). Anti-rabbit IgG (H+L), F(ab')2 Fragment (Alexa Fluor® 488 Conjugate) #4412 was used as a secondary antibody.