Analysis Note

ControlBMP-4-treated HeLa or NIH/3T3 cells

Application

Detect phospho-Smad1 (Ser463/465) with Anti-phospho-Smad1 (Ser463/465) Antibody (Rabbit Polyclonal Antibody), that has been shown to work in WB.

General description

Smad proteins, the mammalian homologs of the Drosophila Mothers against dpp (Mad), function downstream of TGF-β receptor Serine/Threonine kinases and undergo serine phosphorylation in response to receptor activation. Following BMP (bone morphogenic protein) or TGF-β binding to the targeted surface receptors, Smad1 (also designated Madr1 or JV4-1) becomes phosphorylated at Ser 463 and Ser 465. Activated Smad1 associates with Smad4 and translocates to the nucleus, where the Smad1/Smad4 complex recruits DNA-binding proteins to activate specific gene transcription. BMP binding induces phosphorylation of Smad1, which enhances the binding of Smad1 to CBP to stimulate Smad1-dependent transcription. In addition, ALK1 and ALK2 specifically phosphorylate Smad1 on residues located in the MH2 domain and induces Smad1-dependent pathways.

Immunogen

peptide corresponding to (CGGSPHNPISpSVpSGG) corresponding to amino acids 455-465 of human Smad1 protein

Legal Information

UPSTATE is a registered trademark of Merck KGaA, Darmstadt, Germany

Other Notes

Concentration: Please refer to the Certificate of Analysis for the lot-specific concentration.

Physical form

Format: Purified

Quality

routinely evaluated by immunoblot on RIPA lysates from P19 (mouse embryonal carcinoma) cells treated with BMP4

Specificity

Recognizes the dual serine phosphorylated Smad1 (Ser463/465).

Target description

65 kDa