bsm-70232M

DATASHEET

Host: Mouse

Target Protein: Progesterone Receptor (Ser294)

Specificity: Specific for endogenous levels of the ~90 kDa PR-A isoform and the ~120 kDa PR-B isoform phosphorylated at Ser294. Immunolabeling is blocked by preadsorption with the phosphopeptide used as antigen, but not by the corresponding non-phosphopeptide.

Modification Site: Ser294

Clonality: Monoclonal

Isotype: IgG1

Entrez Gene: 5241

Swiss Prot: P06401

Source: Synthetic phospho-peptide corresponding to amino acid residues surrounding Ser294 of human progesterone receptor, conjugated to keyhole limpet hemocyanin (KLH).

Purification: Purified by Protein G.

Storage Buffer: 10 mM HEPES (pH 7.5), 150 mM NaCl, 100 µg per ml BSA and 50% glycerol.

Storage: Storage at -20°C is recommended, as aliquots may be taken without freeze/thawing due to presence of 50% glycerol. Stable for at least 1 year at -20°C.

Background:

There is accumulating evidence to suggest that progesterone plays an essential role in the regulation of growth and differentiation of mammary glands and thus may play a key role in breast cancer (Edwards, 2005). The biological response to progesterone is mediated by two distinct forms of the human progesterone receptor (PR-A and PR-B forms). In most cell contexts, the B form functions as a transcriptional activator, whereas the A form functions as a transcriptional inhibitor of steroid hormones (Attia et al., 2000; Lin et al., 2003). Recently it has been demonstrated that there is differential hormone dependent regulation of the phosphorylation of the A and B forms of the receptor (Clemm et al., 2000) . Treatment of T47D breast cancer cells with progestin agonist increases the phosphorylation of Ser-190 and Ser-294 with different kinetics. These phosphorylation events may differentially affect the transcriptional activity of the receptor.

Size: 100ul

Concentration: Lot Dependent

Predicted Molecular Weight: 90/120

Cross Reactive Species: Human

Predicted Cross Reactive Species: Non-Human Primate

For research use only. Not intended for diagnostic or therapeutic use.