Date published: 2026-3-9

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SARA Antibody (B-9): sc-74493

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Datasheets
  • SARA Antibody (B-9) is a mouse monoclonal IgG2b κ SARA antibody provided at 200 µg/ml
  • raised against amino acids 1-300 of SARA of human origin
  • SARA Antibody (B-9) is recommended for detection of SARA of human origin by WB, IP, IF and ELISA
  • Anti-SARA Antibody (B-9) is available conjugated to agarose for IP; HRP for WB, IHC(P) and ELISA; and to either phycoerythrin or FITC for IF, IHC(P) and FCM
  • also available conjugated to Alexa Fluor® 488, Alexa Fluor® 546, Alexa Fluor® 594 or Alexa Fluor® 647 for WB (RGB), IF, IHC(P) and FCM, and for use with RGB fluorescent imaging systems, such as iBright™ FL1000, FluorChem™, Typhoon, Azure and other comparable systems
  • also available conjugated to Alexa Fluor® 680 or Alexa Fluor® 790 for WB (NIR), IF and FCM; for use with Near-Infrared (NIR) detection systems, such as LI-COR®Odyssey®, iBright™ FL1000, FluorChem™, Typhoon, Azure and other comparable systems
  • m-IgG Fc BP-HRP and m-IgG2b BP-HRP are the preferred secondary detection reagents for SARA Antibody (B-9) for WB applications. These reagents are now offered in bundles with SARA Antibody (B-9) (see ordering information below).
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    SARA Antibody (B-9) is a mouse monoclonal IgG2b kappa light chain antibody that detects SARA protein of human origin by western blotting (WB), immunoprecipitation (IP), immunofluorescence (IF), and enzyme-linked immunosorbent assay (ELISA). SARA (B-9) antibody is available in both non-conjugated and various conjugated forms, including agarose, horseradish peroxidase (HRP), phycoerythrin (PE), fluorescein isothiocyanate (FITC), and multiple Alexa Fluor® conjugates. SARA protein, also known as NSP, MADHIP, SMADIP, or ZFYVE9, features a double zinc finger FYVE domain that plays a crucial role in recruiting Smad proteins to the TGF-beta receptor, ensuring proper subcellular localization of the activated receptor-bound complex. The FYVE domain directs SARA to early endosomal compartments, where SARA interacts with TGF-beta receptors and Smads, facilitating effective signaling pathways. SARA physically interacts with the promyelocytic leukemia (PML) tumor suppressor, which enhances the association and accumulation of SARA and the TGF-beta receptor within early endosomes. SARA can modulate the recruitment of protein phosphatase 1 catalytic subunit (PP1c) to the Smad7-GADD34 complex, influencing the dephosphorylation of the TGF-beta receptor by Smad7, a critical mechanism for regulating negative feedback in TGF-beta signaling. This intricate interplay underscores SARA′s importance in maintaining cellular homeostasis and potential implications in various pathological conditions.

    For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.

    Alexa Fluor® is a trademark of Molecular Probes Inc., OR., USA

    LI-COR® and Odyssey® are registered trademarks of LI-COR Biosciences

    SARA Antibody (B-9) References:

    1. Phosphoinositide 3-kinases and their FYVE domain-containing effectors as regulators of vacuolar/lysosomal membrane trafficking pathways.  |  Wurmser, AE., et al. 1999. J Biol Chem. 274: 9129-32. PMID: 10092582
    2. Phosphatidylinositol 3-phosphate recognition by the FYVE domain.  |  Kutateladze, TG., et al. 1999. Mol Cell. 3: 805-11. PMID: 10394369
    3. Smads 2 and 3 are differentially activated by transforming growth factor-beta (TGF-beta) in quiescent and activated hepatic stellate cells. Constitutive nuclear localization of Smads in activated cells is TGF-beta-independent.  |  Liu, C., et al. 2003. J Biol Chem. 278: 11721-8. PMID: 12547835
    4. SARA and Hgs attenuate susceptibility to TGF-beta1-mediated T cell suppression.  |  Kunzmann, S., et al. 2003. FASEB J. 17: 194-202. PMID: 12554698
    5. Distinct endocytic pathways regulate TGF-beta receptor signalling and turnover.  |  Di Guglielmo, GM., et al. 2003. Nat Cell Biol. 5: 410-21. PMID: 12717440
    6. GADD34-PP1c recruited by Smad7 dephosphorylates TGFbeta type I receptor.  |  Shi, W., et al. 2004. J Cell Biol. 164: 291-300. PMID: 14718519
    7. Cytoplasmic PML function in TGF-beta signalling.  |  Lin, HK., et al. 2004. Nature. 431: 205-11. PMID: 15356634
    8. The role of internalization in transforming growth factor beta1-induced Smad2 association with Smad anchor for receptor activation (SARA) and Smad2-dependent signaling in human mesangial cells.  |  Runyan, CE., et al. 2005. J Biol Chem. 280: 8300-8. PMID: 15613484
    9. TGF-beta receptor-mediated signalling through Smad2, Smad3 and Smad4.  |  Nakao, A., et al. 1997. EMBO J. 16: 5353-62. PMID: 9311995
    10. TGF-beta signalling from cell membrane to nucleus through SMAD proteins.  |  Heldin, CH., et al. 1997. Nature. 390: 465-71. PMID: 9393997
    11. Smads: transcriptional activators of TGF-beta responses.  |  Derynck, R., et al. 1998. Cell. 95: 737-40. PMID: 9865691
    12. SARA, a FYVE domain protein that recruits Smad2 to the TGFbeta receptor.  |  Tsukazaki, T., et al. 1998. Cell. 95: 779-91. PMID: 9865696
    13. Signal transduction. An anchor for activation.  |  ten Dijke, P. and Heldin, CH. 1999. Nature. 397: 109, 111. PMID: 9923670

    Ordering Information

    Product NameCatalog #UNITPriceQtyFAVORITES

    SARA Antibody (B-9)

    sc-74493
    200 µg/ml
    $322.00

    SARA Antibody (B-9): m-IgG Fc BP-HRP Bundle

    sc-525722
    200 µg Ab; 10 µg BP
    $361.00

    SARA Antibody (B-9): m-IgG2b BP-HRP Bundle

    sc-549630
    200 µg Ab; 10 µg BP
    $361.00

    SARA Antibody (B-9) AC

    sc-74493 AC
    500 µg/ml, 25% agarose
    $424.00

    SARA Antibody (B-9) HRP

    sc-74493 HRP
    200 µg/ml
    $322.00

    SARA Antibody (B-9) FITC

    sc-74493 FITC
    200 µg/ml
    $336.00

    SARA Antibody (B-9) PE

    sc-74493 PE
    200 µg/ml
    $349.00

    SARA Antibody (B-9) Alexa Fluor® 488

    sc-74493 AF488
    200 µg/ml
    $364.00

    SARA Antibody (B-9) Alexa Fluor® 546

    sc-74493 AF546
    200 µg/ml
    $364.00

    SARA Antibody (B-9) Alexa Fluor® 594

    sc-74493 AF594
    200 µg/ml
    $364.00

    SARA Antibody (B-9) Alexa Fluor® 647

    sc-74493 AF647
    200 µg/ml
    $364.00

    SARA Antibody (B-9) Alexa Fluor® 680

    sc-74493 AF680
    200 µg/ml
    $364.00

    SARA Antibody (B-9) Alexa Fluor® 790

    sc-74493 AF790
    200 µg/ml
    $364.00

    For Western Blot, is it recommended to use denatured or non-denatured conditions with SARA (B-9): sc-74493 monoclonal antibody?

    Asked by: Dr Ninau Qelp
    Thank you for your question. We recommend this antibody for use in denatured Western Blot conditions. It has not been validated for use in non-denatured conditions. Please contact our Technical Service Department for further details or inquiries.
    Answered by: Technical Support
    Date published: 2017-02-27
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    Rated 5 out of 5 by from Good for Western blotAntibody detects SARA in Hela, Caki-1, HepG2, IMR-32, and sc-115327 human SARA transfected cell lysates by Western blot -SCBT QC
    Date published: 2023-09-14
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    SARA Antibody (B-9) is rated 5.0 out of 5 by 2.
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