Product Pathways - Nuclear Receptor Signaling
Progesterone Receptor A/B (C89F7) Rabbit mAb #3153
|3153S||100 µl (10 western blots)||---||In Stock||---|
|3153||carrier free and custom formulation / quantity||email request|
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|W||1:1000||Human||Endogenous||90 (PR-A) and 118 (PR-B)||Rabbit IgG|
Species cross-reactivity is determined by western blot.
Applications Key: W=Western Blotting, IHC-P=Immunohistochemistry (Paraffin)
Specificity / Sensitivity
Progesterone Receptor A/B (C89F7) Rabbit mAb detects endogenous levels of total progesterone receptor A and B proteins. This antibody does not cross-react with other PR family members. Non-specific staining of smooth muscle may be observed in paraffin-embedded tissues.
Source / Purification
Monoclonal antibody is produced by immunizing animals with a synthetic peptide corresponding to residues surrounding Tyr541 of human progesterone receptor.
Western blot analysis of extracts from T47D cells using Progesterone Receptor A/B (C89F7) Rabbit mAb.
Immunohistochemical analysis of paraffin-embedded human breast carcinoma using Progesterone Receptor A/B (C89F1) Rabbit mAb.
Immunohistochemical analysis of paraffin-embedded T47D cells (positive, left) and MDA-MB-231 cells (negative, right) using Progesterone Receptor A/B (C89F1) Rabbit mAb.
Human progesterone receptor (PR) is expressed as two forms: the full length PR-B and the short form PR-A. PR-A lacks the first 164 amino acid residues of PR-B (1,2). Both PR-A and PR-B are ligand activated, but differ in their relative ability to activate target gene transcription (3,4). The activity of PR is regulated by phosphorylation; at least seven serine residues are phosphorylated in its amino-terminal domain. Three sites (Ser81, Ser102, and Ser162) are unique to full length PR-B, while other sites (Ser190, Ser294, Ser345, and Ser400) are shared by both isoforms (5). Phosphorylation of PR-B at Ser190 (equivalent to Ser26 of PR-A) is catalyzed by CDK2 (6). Mutation of Ser190 results in decreased activity of PR (7), suggesting that the phosphorylation at Ser190 may be critical to its biological function.
- Evans, R.M. (1988) Science 240, 889-895.
- Kastner, P. et al. (1990) EMBO J. 112, 1603-1614.
- Giangrande, P.H. et al. (2000) Mol. Cell. Biol. 20, 3102-3115.
- Wen, D.X. et al. (1994) Mol. Cell. Biol. 14, 8356-8364.
- Clemm, D.L. et al. (2000) Mol. Endocrinol. 14, 52-65.
- Zhang, Y. et al. (1997) Mol. Endocrinol. 11, 823-832.
- Takimoto, G.S. et al. (1996) J. Biol. Chem. 271, 13308-13316.
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For Research Use Only. Not For Use In Diagnostic Procedures.
Cell Signaling Technology® is a trademark of Cell Signaling Technology, Inc.
This antibody is developed, validated, and produced by CST using in part technology under license (granting certain rights including those under U.S. Patent No. 5,675,063) from Epitomics, Inc.