Antibody data
- Antibody Data
- Antigen structure
- References [2]
- Comments [0]
- Validations
- Immunocytochemistry [1]
- Immunohistochemistry [1]
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Validation data
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- Product number
- 14-9764-80 - Provider product page
- Provider
- Invitrogen Antibodies
- Product name
- Progesterone Receptor Monoclonal Antibody (KMC912), eBioscience™
- Antibody type
- Monoclonal
- Antigen
- Other
- Description
- Description: This KMC912 monoclonal antibody reacts with human progesterone receptor (PgR, PR), a member of a superfamily of nuclear receptors that are ligand-dependent transcriptional regulators. The human PgR exists in alpha and beta forms, 94 kDa and 120 kDa respectively. In most human cells, the alpha and beta forms are expressed at similar levels and predominately form heterodimers. Progestin binding to PgR causes a conformational change, allowing dissociation of bound chaperone proteins and subsequent dimerization with either PgRa or PgRb. Following activation, dimerized PgR can directly bind to DNA through progestin response elements (PRE) leading to chromatin remodeling and subsequent downregulation or transcription of the target gene.The PgR plays a key role in controlling gene expression in breast, uterine, brain, and cardiovascular tissue during development. The presence of the PgR in breast tissue is indicative of improved survival and a better response to endocrine therapy. In breast and endometrial cancer progression, a predominance of either the alpha or beta form occurs, suggesting disregulation in the PgRa:PgRb ratio is an early event in cancer. In cases of ductal carcinoma in situ and invasive ductal carcinoma, there is predominance of the alpha form while in uterine cancer a loss of either form is common.
- Antibody clone number
- KMC912
- Concentration
- 0.5 mg/mL
Submitted references Progesterone action in endometrial cancer, endometriosis, uterine fibroids, and breast cancer.
Progesterone action in human tissues: regulation by progesterone receptor (PR) isoform expression, nuclear positioning and coregulator expression.
Kim JJ, Kurita T, Bulun SE
Endocrine reviews 2013 Feb;34(1):130-62
Endocrine reviews 2013 Feb;34(1):130-62
Progesterone action in human tissues: regulation by progesterone receptor (PR) isoform expression, nuclear positioning and coregulator expression.
Scarpin KM, Graham JD, Mote PA, Clarke CL
Nuclear receptor signaling 2009 Dec 31;7:e009
Nuclear receptor signaling 2009 Dec 31;7:e009
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Supportive validation
- Submitted by
- Invitrogen Antibodies (provider)
- Main image
- Experimental details
- Immunocytochemistry of fixed and permeabilized MCF7 cells using 1 µg/mL of Anti-Human Progesterone Receptor Purified followed by 1 µg/mL of F (ab')2 Anti-Mouse IgG eFluor® 570.Nuclei are counterstained with DAPI, and colocalization of signal appears pink.
Supportive validation
- Submitted by
- Invitrogen Antibodies (provider)
- Main image
- Experimental details
- Immunohistochemistry of formalin-fixed paraffin embedded human infiltrating ductal carcinoma using 2.5 µg/mL of Anti-Human Progesterone Receptor Purified followed by Anti-Mouse IgG Biotin, Streptavidin HRP, and DAB visualization (right).