anti-Smad4, mAb (31G4)

CHF 315.00
In stock
YIF-LF-MA0272100 µlCHF 315.00
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Product Details
Synonyms DPC4; Smad4; SMAD4; hSMAD4; SMAD 4; MAD Homolog 4; SMAD Family Member 4; Mothers Against DPP Homolog 4; Mothers Against Decapentaplegic Homolog 4; Deletion Target in Pancreatic Carcinoma 4
Product Type Monoclonal Antibody
Clone 31G4
Isotype Mouse IgG2a κ
Immunogen/Antigen Recombinant human His-Smad4 protein purified from E. coli.

Immunoprecipitation (2 μl)

Crossreactivity Human
Purity Detail Ammonium sulfate precipitation.
Formulation Liquid. HEPES with 0.15M NaCl, 0.01% BSA, 0.03% sodium azide, and 50% glycerol.
Isotype Negative Control

Mouse IgG2a Isotype Control

Other Product Data

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Our product description may differ slightly from the original manufacturers product datasheet.

Declaration Manufactured by AbFrontier
Shipping and Handling
Shipping BLUE ICE
Short Term Storage +4°C
Long Term Storage -20°C
Use/Stability Stable for at least 1 year after receipt when stored at -20°C.
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Product Specification Sheet
Datasheet Download PDF

The Smad family of proteins are functioning in the transmission of extracellular signals in the TGF-β signaling pathway. Binding of a TGF-β superfamily ligands to extracellular receptors triggers phosphorylation of Smad2 at a Serine-Serine-Methionine-Serine (SSMS) motif at its C-terminus. Phosphorylated Smad2 is then able to form a complex with Smad4. These complexes accumulate in the cell nucleus, where they are directly participating in the regulation of gene expression. In mammals, eight Smad proteins have been identified to date. The Smad family of proteins can be divided into three functional groups: the receptor-activated Smads (R-Smads), common mediator Smads (Co-Smads), and the inhibitory Smads (I-Smads). The R-Smads are directly phosphorylated by the activated type I receptors on their C-terminal Ser-Ser-X-Ser (SSXS) motif and include Smad1, Smad2, Smad3, Smad5, and Smad8. Smad2 and Smad3 are phosphorylated in response to TGF-β and activin, whereas Smad1, Smad5, and Smad8 are phosphorylated in response to BMP (Bone Morphogenetic Protein). This C-terminal phosphorylation allows R-Smad binding to Co-Smad, Smad4, and translocation to the nucleus where they regulate TGF-β target genes. Smad6 and Smad7 belong to the I-Smad which bind to the type I receptor or Smad4 and block their interaction with R-Smads. The Smads share sequence similarities, most notably in the N-terminal and carboxy-terminal regions, referred to as the MH1 (Mad Homology 1) and MH2 domains respectively. Smad2 and Smad3 have 66% amino acid sequence identity between their MH1 domains and 96% amino acid sequence identity between their MH2 domains. Common mediator of signal transduction by TGF-β (transforming growth factor) superfamily; SMAD4 is the common SMAD (co-SMAD). Promotes binding of the SMAD2/SMAD4/FAST-1 complex to DNA and provides an activation function required for SMAD1 or SMAD2 to stimulate transcription. May act as a tumor suppressor.

Product References

1) Ross S and Hill CS. (2008) Int J Biochem Cell Biol. 40(3):383-408. (General)
2) Brown KA et al. (2007) J Cell Biochem. 101(1):9-33. (General)
3) Xu L. (2006) Biochim Biophys Acta. 1759(11-12):503-513. (General)

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