Overview

  • Product name
  • Description
    Rabbit polyclonal to Smad2
  • Tested applications
    Suitable for: WBmore details
  • Species reactivity
    Reacts with: Human
    Predicted to work with: Mouse, Rat, Rabbit, Horse, Cow, Monkey, Chinese hamster, Orangutan
  • Immunogen

    Synthetic peptide conjugated to KLH derived from within residues 200 - 300 of Human Smad2.

  • Positive control
    • This antibody gave a positive signal in Human Brain tissue lysate as well as the following whole cell lysates: A431; PC3; Caco2; DU145.

Properties

Applications

Our Abpromise guarantee covers the use of ab105443 in the following tested applications.

The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.

Application Abreviews Notes
WB Use a concentration of 1 µg/ml. Detects a band of approximately 60 kDa (predicted molecular weight: 52 kDa).

Target

  • Function
    Receptor-regulated SMAD (R-SMAD) that is an intracellular signal transducer and transcriptional modulator activated by TGF-beta (transforming growth factor) and activin type 1 receptor kinases. Binds the TRE element in the promoter region of many genes that are regulated by TGF-beta and, on formation of the SMAD2/SMAD4 complex, activates transcription. May act as a tumor suppressor in colorectal carcinoma.
  • Tissue specificity
    Expressed at high levels in skeletal muscle, heart and placenta.
  • Sequence similarities
    Belongs to the dwarfin/SMAD family.
    Contains 1 MH1 (MAD homology 1) domain.
    Contains 1 MH2 (MAD homology 2) domain.
  • Post-translational
    modifications
    Phosphorylated on one or several of Thr-220, Ser-245, Ser-250, and Ser-255. In response to TGF-beta, phosphorylated on Ser-465/467 by TGF-beta and activin type 1 receptor kinases. Able to interact with SMURF2 when phosphorylated on Ser-465/467, recruiting other proteins, such as SNON, for degradation. In response to decorin, the naturally occurring inhibitor of TGF-beta signaling, phosphorylated on Ser-240 by CaMK2. Phosphorylated by MAPK3 upon EGF stimulation; which increases transcriptional activity and stability, and is blocked by calmodulin.
    In response to TGF-beta, ubiquitinated by NEDD4L; which promotes its degradation.
    Acetylated on Lys-19 by coactivators in response to TGF-beta signaling, which increases transcriptional activity. Isoform short: Acetylation increases DNA binding activity in vitro and enhances its association with target promoters in vivo. Acetylation in the nucleus by EP300 is enhanced by TGF-beta.
  • Cellular localization
    Cytoplasm. Nucleus. Cytoplasmic and nuclear in the absence of TGF-beta. On TGF-beta stimulation, migrates to the nucleus when complexed with SMAD4. On dephosphorylation by phosphatase PPM1A, released from the SMAD2/SMAD4 complex, and exported out of the nucleus by interaction with RANBP1.
  • Information by UniProt
  • Database links
  • Alternative names
    • Drosophila, homolog of, MADR2 antibody
    • hMAD-2 antibody
    • HsMAD2 antibody
    • JV18 antibody
    • JV18-1 antibody
    • JV181 antibody
    • MAD antibody
    • MAD homolog 2 antibody
    • MAD Related Protein 2 antibody
    • Mad-related protein 2 antibody
    • MADH2 antibody
    • MADR2 antibody
    • MGC22139 antibody
    • MGC34440 antibody
    • Mother against DPP homolog 2 antibody
    • Mothers against decapentaplegic homolog 2 antibody
    • Mothers against decapentaplegic, Drosophila, homolog of, 2 antibody
    • Mothers against DPP homolog 2 antibody
    • OTTHUMP00000163489 antibody
    • Sma and Mad related protein 2 antibody
    • Sma- and Mad-related protein 2 MAD antibody
    • SMAD 2 antibody
    • SMAD family member 2 antibody
    • SMAD, mothers against DPP homolog 2 antibody
    • SMAD2 antibody
    • SMAD2_HUMAN antibody
    see all

Images

  • All lanes : Anti-Smad2 antibody (ab105443) at 1 µg/ml

    Lane 1 : Human brain tissue lysate - total protein (ab29466)
    Lane 2 : A431 (Human epithelial carcinoma cell line) Whole Cell Lysate
    Lane 3 : PC3 (Human prostate carcinoma cell line) Whole Cell Lysate Whole Cell Lysate
    Lane 4 : Caco 2 (Human colonic carcinoma cell line) Whole Cell Lysate
    Lane 5 : DU 145 (Human prostate carcinoma cell line) Whole Cell Lysate

    Lysates/proteins at 10 µg per lane.

    Secondary
    Goat Anti-Rabbit IgG H&L (HRP) preadsorbed (ab97080) at 1/5000 dilution
    Developed using the ECL technique

    Performed under reducing conditions.

    Predicted band size : 52 kDa
    Observed band size : 60 kDa (why is the actual band size different from the predicted?)
    Additional bands at : 100 kDa,48 kDa. We are unsure as to the identity of these extra bands.

    Exposure time : 3 minutes

References

ab105443 has not yet been referenced specifically in any publications.

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Please note: All products are "FOR RESEARCH USE ONLY AND ARE NOT INTENDED FOR DIAGNOSTIC OR THERAPEUTIC USE"

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