Background: Smad3 is a 50 kDa member of a family of proteins that act as key mediators of TGF beta superfamily signaling in cell proliferation, differentiation and development. The Smad family is divided into three subclasses: receptor regulated Smads, activin/TGF beta receptor regulated (Smad2 and 3) or BMP receptor regulated (Smad 1, 5, and 8); the common partner, (Smad4) that functions via its interaction to the various Smads; and the inhibitory Smads, (Smad6 and 7). Activated Smad3 oligomerizes with Smad4 upon TGF beta stimulation and translocates as a complex into the nucleus, allowing its binding to DNA and transcription factors. Phosphorylation of the two TGF beta dependent serines 423 and 425 in the C terminus of Smad3 is critical for Smad3 transcriptional activity and TGF beta signaling.
Description: Rabbit polyclonal to Smad3
Immunogen: KLH conjugated synthetic peptide derived from Smad3
Specificity: ·Reacts with Human, Mouse and Rat.
·Isotype: IgG
Application: ·Western blotting: 1/100-500. Predicted Mol wt: 55 kDa;
·Immunohistochemistry (Paraffin/Frozen tissue section): 1/50-200;
·Immunocytochemistry: 1/100;
·ELISA: 1/500;
·Optimal working dilutions must be determined by the end user.
