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9515
Smad4 Antibody

Smad4 Antibody #9515

This product is discontinued

We recommend the following alternatives

  • WB
  • IP
  • ChIP
H M R Mk
Storage:

Supplied in 10 mM sodium HEPES (pH 7.5), 150 mM NaCl, 100 µg/ml BSA and 50% glycerol. Store at –20°C. Do not aliquot the antibody.

Smad4 Antibody detects endogenous levels of total Smad4 protein.

Polyclonal antibodies are produced by immunizing animals with a synthetic peptide corresponding to the residues surrounding Pro278 of human Smad4. Antibodies are purified by protein A and peptide affinity chromatography.

Members of the Smad family of signal transduction molecules are components of a critical intracellular pathway that transmits TGF-β signals from the cell surface into the nucleus. Three distinct classes of Smads have been defined: the recepter-regulated Smads (R-Smads), which include Smad1, 2, 3, 5, 8; the common-mediator Smad (co-Smad), Smad4; and the antagonistic or inhibitory Smads (I-Smads), Smad6 and 7 (1-5). Briefly, activated type I receptors associate with specific R-Smads and phosphorylate them on a conserved SSXS motif at the carboxy-terminus of the proteins. The phosphorylated R-Smad dissociates from the receptor and forms a heteromeric complex with the co-Smad, Smad4, and together the complex moves to the nucleus. Once in the nucleus, Smads can target a variety of DNA binding proteins to regulate transcriptional responses (6-8).

  1. Heldin, C. H. et al. (1997) Nature 390, 465-71.
  2. Attisano, L. and Wrana, J.L. (1998) Curr. Opin. Cell Biol. 10, 188-94.
  3. Derynck, R. et al. (1998) Cell 95, 737-40.
  4. Massague, J. (1998) Annu. Rev. Biochem. 67, 753-91.
  5. Whitman, . (1998) Genes Dev. 12, 2445-62.
  6. Wrana, J. (2000) Science 23, 1-9.
  7. Attisano, L. and Wrana, J. (2002) Science 296, 1646-7.
  8. Moustakas, A. et al. (2001) J. Cell Sci. 114, 4359-69.
Entrez-Gene Id
4089
Swiss-Prot Acc.
Q13485
For Research Use Only. Not For Use In Diagnostic Procedures.

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