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      Purified Rat anti-Smad1 (pS463/pS465)/Smad8 (pS465/pS467)
      Purified Rat anti-Smad1 (pS463/pS465)/Smad8 (pS465/pS467)
      Analyses of Smad1 (pS463/pS465)/Smad8 (pS465/pS467) expression.      Western blot analyses of Smad1 (pS463/pS465)/Smad8 (pS465/pS467) expression by Ramos cells (Left Panel) and human peripheral blood mononuclear cells (PBMC; Middle Panel). Lysates were prepared from Ramos cells (20 µg total protein/lane) or PBMC (1 million cells/lane) that were cultured overnight in media containing 0.1% FBS and then either not treated (C) or treated (T) with Bone Morphogenetic Protein 6 (BMP-6; R&D Systems, Cat. No. 507-BP; 500 ng/ml, 15 min, 37°C). The lysates were electrophoresed, transferred to a membrane and blotted using Purified Rat anti-Smad1 (pS463/pS465)/Smad8 (pS465/pS467) antibody (at 0.5, 0.25 and 0.125 µg/ml for Lanes 1, 2, 3, respectively), HRP Goat Anti-Rat Ig (Cat. No. 554017) and a chemiluminescent detection system. Phosphorylated Smad1 and Smad8 were identified as ~60 kDa bands by Western blotting.      Flow cytometric analysis of Smad1 (pS463/pS465)/Smad8 (pS465/pS467) expressed by PBMC (Right Panel). PBMC were cultured overnight in media containing 0.1% FBS and then either not treated (dashed line histogram) or treated with BMP-6 (500 ng/ml, 15 min, 37°C; solid line histogram). Cells were fixed in 1X BD Phosflow™ Lyse/Fix Buffer (Cat. No. 558049; 10 min, 37˚C) and permeabilized in BD Phosflow™ Perm Buffer III (Cat. No. 558050; 30 min, on ice). Cells were then stained with BD Phosflow™ PE Rat anti-Smad1 (pS463/pS465)/Smad8 (pS465/pS467) (Cat. No. 562509) and Alexa Fluor® 647 Mouse Anti-Human CD20 (Cat. No. 558054) antibodies. Fluorescence histograms showing Smad1 and Smad8 phosphorylation were generated for CD20-positive gated events with the forward and side-light scatter characteristics of intact cells using a BD FACSCanto™ II Flow Cytometer System.      Note: For all analyses shown, PBMC were isolated from freshly drawn EDTA blood.
      Purified Rat anti-Smad1 (pS463/pS465)/Smad8 (pS465/pS467) Purified Rat anti-Smad1 (pS463/pS465)/Smad8 (pS465/pS467)
      Analyses of Smad1 (pS463/pS465)/Smad8 (pS465/pS467) expression.      Western blot analyses of Smad1 (pS463/pS465)/Smad8 (pS465/pS467) expression by Ramos cells (Left Panel) and human peripheral blood mononuclear cells (PBMC; Middle Panel). Lysates were prepared from Ramos cells (20 µg total protein/lane) or PBMC (1 million cells/lane) that were cultured overnight in media containing 0.1% FBS and then either not treated (C) or treated (T) with Bone Morphogenetic Protein 6 (BMP-6; R&D Systems, Cat. No. 507-BP; 500 ng/ml, 15 min, 37°C). The lysates were electrophoresed, transferred to a membrane and blotted using Purified Rat anti-Smad1 (pS463/pS465)/Smad8 (pS465/pS467) antibody (at 0.5, 0.25 and 0.125 µg/ml for Lanes 1, 2, 3, respectively), HRP Goat Anti-Rat Ig (Cat. No. 554017) and a chemiluminescent detection system. Phosphorylated Smad1 and Smad8 were identified as ~60 kDa bands by Western blotting.      Flow cytometric analysis of Smad1 (pS463/pS465)/Smad8 (pS465/pS467) expressed by PBMC (Right Panel). PBMC were cultured overnight in media containing 0.1% FBS and then either not treated (dashed line histogram) or treated with BMP-6 (500 ng/ml, 15 min, 37°C; solid line histogram). Cells were fixed in 1X BD Phosflow™ Lyse/Fix Buffer (Cat. No. 558049; 10 min, 37˚C) and permeabilized in BD Phosflow™ Perm Buffer III (Cat. No. 558050; 30 min, on ice). Cells were then stained with BD Phosflow™ PE Rat anti-Smad1 (pS463/pS465)/Smad8 (pS465/pS467) (Cat. No. 562509) and Alexa Fluor® 647 Mouse Anti-Human CD20 (Cat. No. 558054) antibodies. Fluorescence histograms showing Smad1 and Smad8 phosphorylation were generated for CD20-positive gated events with the forward and side-light scatter characteristics of intact cells using a BD FACSCanto™ II Flow Cytometer System.      Note: For all analyses shown, PBMC were isolated from freshly drawn EDTA blood.
      Product Details
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      BD Pharmingen™
      Smad1,Smad8/Smad9; MADH1, MADH9
      Human (QC Testing), Mouse (Predicted)
      Rat IgG2a, κ
      Phosphorylated Human Smad1 aa 456-465 Peptide
      Western blot (Routinely Tested), Intracellular staining (flow cytometry) (Tested During Development), Immunohistochemistry (Not Recommended)
      ~ 60 kDa
      0.5 mg/ml
      AB_11153490
      Aqueous buffered solution containing ≤0.09% sodium azide.
      RUO


      Preparation And Storage

      Store undiluted at 4°C. The monoclonal antibody was purified from tissue culture supernatant or ascites by affinity chromatography.
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      Recommended Assay Procedures

      In human PBMC, overnight serum starvation was found to be necessary for detection of a BMP-6-induced increase in Smad1/8 phosphorylation. Serum starvation for 1 hour following PBMC isolation was not sufficient to reduce basal levels of Smad1 (pS463/pS465)/Smad8(pS465/pS467).  Some donor variation was observed in the reduction of basal phosphorylation by overnight serum starvation.

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      Product Notices

      1. Since applications vary, each investigator should titrate the reagent to obtain optimal results.
      2. Please refer to www.bdbiosciences.com/us/s/resources for technical protocols.
      3. Caution: Sodium azide yields highly toxic hydrazoic acid under acidic conditions. Dilute azide compounds in running water before discarding to avoid accumulation of potentially explosive deposits in plumbing.
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      562508 Rev. 1
      Antibody Details
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      N6-1233

      The N6-1233 monoclonal antibody specifically binds to the Smad1 protein phosphorylated at the Ser463/465 sites and the Smad8 protein phosphorylated at the Ser465/467 sites. Smad1 and Smad8 are ~60 kDa proteins and are members of the Smad superfamily. The Smad family members are divided into three subfamilies: receptor regulated Smads or R-Smads, including Smads1, 2, 3, 5, and 8; common partner Smad, or Co-Smad, including Smad4; and inhibitory Smads, or I-Smad, including Smads 6 and 7. Activation of Transforming Growth Factor-beta (TGF-beta) superfamily serine/threonine kinase receptors, such as TGF-beta and Bone Morphogenic  Protein (BMP) receptors, leads to the phosphorylation of R-Smads at several sites. It has been shown that Ser463 and Ser465 of Smad1 are phosphorylated by BMP receptors. In B cells and pre-B cells, BMP-6 has been shown to induce Smad1/5/8 phosphorylation and inhibit cell proliferation. Phosphorylated R-Smads form complexes with Co-Smad and translocate into the nucleus to regulate transcription affecting a wide range of critical processes including cell-fate determination, proliferation, morphogenesis, differentiation and apoptosis. The inhibitory Smads inhibit this pathway through two potential mechanisms: either by preventing R-Smads from binding to their corresponding receptors and/or by competing with Smad4, the Co-Smad, from binding to R-Smads. This antibody may crossreact with Smad5 pS463/pS465 based on sequence homology.

      562508 Rev. 1
      Format Details
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      Purified
      Tissue culture supernatant is purified by either protein A/G or affinity purification methods. Both methods yield antibody in solution that is free of most other soluble proteins, lipids, etc. This format provides pure antibody that is suitable for a number of downstream applications including: secondary labeling for flow cytometry or microscopy, ELISA, Western blot, etc.
      Purified
      562508 Rev.1
      Citations & References
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      Development References (6)

      1. Hogan BL. Bone morphogenetic proteins: multifunctional regulators of vertebrate development. Genes Dev. 1996; 10(13):1580-1594. (Biology). View Reference
      2. Hoodless PA, Haerry T, Abdollah S, et al. MADR1, a MAD-related protein that functions in BMP2 signaling pathways. Cell. 1996; 85(4):489-500. (Biology). View Reference
      3. Kretzschmar M, Doody J, Massagué J. Opposing BMP and EGF signalling pathways converge on the TGF-beta family mediator Smad1. Nature. 1997; 389(6651):618-622. (Biology). View Reference
      4. Kretzschmar M, Liu F, Hata A, Doody J, Massague J. The TGF-beta family mediator Smad1 is phosphorylated directly and activated functionally by the BMP receptor kinase. Genes Dev. 1997; 11:984-995. (Biology). View Reference
      5. Whitman M. Smads and early developmental signaling by the TGFbeta superfamily. Genes Dev. 1998; 12(16):2445-2462. (Biology). View Reference
      6. Yang J, Davies RJ, Southwood M, et al. Mutations in bone morphogenetic protein type II receptor cause dysregulation of Id gene expression in pulmonary artery smooth muscle cells: implications for familial pulmonary arterial hypertension. Circ Res. 2008; 102(10):1212-1221. (Biology). View Reference
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      562508 Rev. 1

      Please refer to Support Documents for Quality Certificates


      Global - Refer to manufacturer's instructions for use and related User Manuals and Technical data sheets before using this products as described


      Comparisons, where applicable, are made against older BD Technology, manual methods or are general performance claims.  Comparisons are not made against non-BD technologies, unless otherwise noted.

      For Research Use Only. Not for use in diagnostic or therapeutic procedures.

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