Home Antibody All anti-SMAD1 antibodies
Also for SMAD1 (NM_001003688)
|This affinity purified antibody was prepared from whole rabbit serum produced by repeated immunizations with a phosphorylated synthetic peptide corresponding to the region of amino acids containing serine 206 of human SMAD1 protein.|
|human, mouse, rat, dog
||ELISA: 1:5,000 - 1:25,000, WB: 1:500 - 1:2,000
|0.02 M Potassium Phosphate, 0.15 M Sodium Chloride, pH 7.2|
|SMAD1 is also known Mothers Against Decapentaplegic homolog 1, Mothers against DPP homolog 1, hSMAD-3, JV4-1, Transforming growth factor-Beta-Signaling Protein 1 or BSP1. SMAD proteins are signal transducers and transcriptional modulators that mediate multiple signaling pathways. SMAD1, as a transcriptional modulator, is activated by BMP (Bone Morphogenetic Protein) type 1 receptor kinase (it is a receptor-regulated SMAD or R-SMAD). BMPs are involved in a range of biological activities including cell growth, apoptosis, morphogenesis, development and immune responses. SMAD proteins have been implicated as downstream effectors of TGF beta/BMP signaling. In response to BMP ligands, SMAD1 can be phosphorylated (other sites besides the most prominent of S206, are S187, S195, and S214). S-206 is phosphorylated by ERK in response to mitogenic growth factors, or by recombinant ERK in vitro; this can be tested by treating cells with EGF or in cancer cells where Ras is activated. The phosphorylated form of this protein forms a complex with SMAD4, which is important for its function in the transcription regulation. This protein is also a target for SMAD-specific E3 ubiquitin ligases, such as SMURF1 and SMURF2, and undergoes ubiquitination and proteasome-mediated degradation.
|Homo sapiens SMAD family member 1 (SMAD1), transcript variant 2|
|BSP-1; BSP1; JV4-1; JV41; MADH1; MADR1|
Delta-Notch Signaling Pathway
TGF Beta Signaling Pathway
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Western blot using Affinity Purified anti-SMAD1 pS206 antibody shows detection of endogenous phosphorylated SMAD1 in whole cell lysates from human hepatoma (HEPG2, lanes 1-4) derived cell lines treated with PBS, BMP2 (5 ng/mL), EGF (1 ng/mL), or NaCl for 1 h at 37°C before harvest. Each lane contains approximately 15 µg of lysate. Primary antibody was used at a 1:500 dilution in 1% BLOTTO (p/n B501-0500) and reacted for 1 hour at room temperature. Primary antibody was pre-incubated before reacting with blot as follows: top row - with PBS, middle row - with the immunizing phosphorylated peptide and bottom row - with control or non-phosphorylated peptide. The membrane was washed and reacted with a 1:3,000 dilution HRP-conjugated a-Rabbit IgG (p/n 611-103-122) for 1 hour at room temperature. Detection was by ECL. Personal communication, Xin-Hua Feng, Baylor College of Medicine, Houston, TX.