Revision 1
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.
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UniProt ID:

#Q06187

Entrez-Gene Id:

695

Product Includes Quantity Reactivity MW(kDa) Isotype
Phospho-Btk (Tyr223) (D1D2Z) Rabbit mAb 87457 100 µl H M 78 Rabbit IgG
Btk (D3H5) Rabbit mAb 8547 100 µl H M 77 Rabbit IgG

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

Description

PhosphoPlus® Duets from Cell Signaling Technology (CST) provide a means to assess protein activation status. Each Duet contains an activation-state and total protein antibody to your target of interest. These antibodies have been selected from CST's product offering based upon superior performance in specified applications.

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 antibody.

Background

Bruton's tyrosine kinase (Btk) is a member of the Btk/Tec family of cytoplasmic tyrosine kinases. Like other Btk family members, it contains a pleckstrin homology (PH) domain and Src homology SH3 and SH2 domains. Btk plays an important role in B cell development (1,2). Activation of B cells by various ligands is accompanied by Btk membrane translocation mediated by its PH domain binding to phosphatidylinositol-3,4,5-trisphosphate (3-5). The membrane-localized Btk is active and associated with transient phosphorylation of two tyrosine residues, Tyr551 and Tyr223. Tyr551 in the activation loop is transphosphorylated by the Src family tyrosine kinases, leading to autophosphorylation at Tyr223 within the SH3 domain, which is necessary for full activation (6,7). The activation of Btk is negatively regulated by PKCβ through phosphorylation of Btk at Ser180, which results in reduced membrane recruitment, transphosphorylation, and subsequent activation (8). The PKC inhibitory signal is likely to be a key determinant of the B cell receptor signaling threshold to maintain optimal Btk activity (8).

  1. Khan, W.N. (2001) Immunol Res 23, 147-56.
  2. Lewis, C.M. et al. (2001) Curr Opin Immunol 13, 317-25.
  3. Salim, K. et al. (1996) EMBO J 15, 6241-50.
  4. Rameh, L.E. et al. (1997) J Biol Chem 272, 22059-66.
  5. Várnai, P. et al. (1999) J Biol Chem 274, 10983-9.
  6. Rawlings, D.J. et al. (1996) Science 271, 822-5.
  7. Park, H. et al. (1996) Immunity 4, 515-25.
  8. Kang, S.W. et al. (2001) EMBO J 20, 5692-702.

Background References

    Trademarks and Patents

    Cell Signaling Technology is a trademark of Cell Signaling Technology, Inc.
    PhosphoPlus is a registered 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

    法的な権限を与えられたCSTの担当者が署名した書面によって別途明示的に合意された場合を除き、 CST、その関連会社または代理店が提供する製品には以下の条件が適用されます。お客様が定める条件でここに定められた条件に含まれるものを超えるもの、 または、ここに定められた条件と異なるものは、法的な権限を与えられたCSTの担当者が別途書面にて受諾した場合を除き、拒絶され、 いかなる効力も効果も有しません。

    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
    #79781

    PhosphoPlus® Btk (Tyr223) Antibody Duet

    PhosphoPlus® Btk (Tyr223) Antibody Duet: Image 1 Expand Image
    Simple Western™ analysis of lysates (0.1 mg/mL) from Raji cells using Btk (D3H5) Rabbit mAb #8547. The virtual lane view (left) shows a single target band (as indicated) at 1:10 and 1:50 dilutions of primary antibody. The corresponding electropherogram view (right) plots chemiluminescence by molecular weight along the capillary at 1:10 (blue line) and 1:50 (green line) dilutions of primary antibody. This experiment was performed under reducing conditions on the Jess™ Simple Western instrument from ProteinSimple, a BioTechne brand, using the 12-230 kDa separation module.
    PhosphoPlus® Btk (Tyr223) Antibody Duet: Image 2 Expand Image
    Western blot analysis of extracts from various cell lines using Btk (D3H5) Rabbit mAb.
    PhosphoPlus® Btk (Tyr223) Antibody Duet: Image 3 Expand Image
    Western blot analysis of extracts from Daudi cells, serum-starved overnight, then vehicle-treated (lane 1), treated with anti-human IgM (12 μg/ml, 10 min; lane 2), or pre-treated with Ibrutinib #16483 (1 μM, 60 min) prior to anti-IgM treatment (lane 3), using Phospho-Btk (Tyr23) (D1D2Z) Rabbit mAb (upper) or Btk (D6H5) Rabbit mAb #8547 (lower).
    PhosphoPlus® Btk (Tyr223) Antibody Duet: Image 4 Expand Image
    Immunohistochemical analysis of paraffin-embedded human squamous cell lung carcinoma using Btk (D3H5) Rabbit mAb performed on the Leica® Bond Rx.
    PhosphoPlus® Btk (Tyr223) Antibody Duet: Image 5 Expand Image
    Immunoprecipitation of Phospho-Btk (Tyr223) from Ramos cells, serum-starved followed by treatment with anti-human IgM (12 μg/ml, 10 min) using Phospho-Btk (Tyr223) (D1D2Z) Rabbit mAb. Lane 1 is 10% input, lane 2 is Rabbit (DA1E) mAb IgG XP® Isotyope Control #3900, lane 3 is Phospho-Btk (Tyr223) (D1D2Z) Rabbit mAb (1:50), and lane 4 is Phospho-Btk (Tyr223) (D1D2Z) Rabbit mAb (1:100). Western blot analysis was performed using Phospho-Btk (Tyr223) (D1D2Z) Rabbit mAb. Anti-rabbit IgG, HRP-linked Antibody #7074 was used as the secondary antibody.
    PhosphoPlus® Btk (Tyr223) Antibody Duet: Image 6 Expand Image
    Immunohistochemical analysis of paraffin-embedded human colon carcinoma using Btk (D3H5) Rabbit mAb. Note staining of inflammatory cells.
    PhosphoPlus® Btk (Tyr223) Antibody Duet: Image 7 Expand Image
    Immunohistochemical analysis of paraffin-embedded human B-cell lymphoma using Btk (D3H5) Rabbit mAb.
    PhosphoPlus® Btk (Tyr223) Antibody Duet: Image 8 Expand Image
    Immunohistochemical analysis of paraffin-embedded mouse colon using Btk (D3H5) Rabbit mAb.
    PhosphoPlus® Btk (Tyr223) Antibody Duet: Image 9 Expand Image
    Immunohistochemical analysis of paraffin-embedded human ovarian carcinoma using Btk (D3H5) Rabbit mAb. Note staining of inflammatory cells.
    PhosphoPlus® Btk (Tyr223) Antibody Duet: Image 10 Expand Image
    Immunohistochemical analysis of paraffin-embedded cell pellets, Ramos(left) or Jurkat (right), using Btk (D3H5) Rabbit mAb.
    PhosphoPlus® Btk (Tyr223) Antibody Duet: Image 11 Expand Image
    Human whole blood was fixed, lysed, and permeabilized as per the Cell Signaling Technology Flow Alternate Protocol and stained using Btk (D3H5) Rabbit mAb. Samples were co-stained using CD3-PE and CD19-APC to distinguish T and B cell subpopulations, respectively. B (red) and T (blue) cell population gates were applied to a histogram depicting the mean fluorescence intensity of Btk. Anti-rabbit IgG (H+L), F(ab')2 Fragment (Alexa Fluor® 488 Conjugate) #4412 was used as a secondary antibody.
    PhosphoPlus® Btk (Tyr223) Antibody Duet: Image 12 Expand Image
    Flow cytometric analysis of Daudi cells (green) and Jurkat cells (blue) using Btk (D3H5) 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.