Product nameAnti-Progesterone Receptor antibody [SP2]
See all Progesterone Receptor primary antibodies
DescriptionRabbit monoclonal [SP2] to Progesterone Receptor
Tested applicationsSuitable for: ICC/IF, WB, IHC-P, Flow Cytmore details
Species reactivityReacts with: Rat, Human
Predicted to work with: Rabbit
Recombinant fragment corresponding to Progesterone Receptor.
EpitopeAmino acids 412-526
- Breast carcinomas
Storage instructionsShipped at 4°C. Store at +4°C short term (1-2 weeks). Upon delivery aliquot. Store at -20°C long term. Avoid freeze / thaw cycle. Store In the Dark.
Storage bufferPreservative: 0.1% Sodium azide
Constituents: Tris buffered saline, 1% BSA
PurityTissue culture supernatant
Our Abpromise guarantee covers the use of ab16661 in the following tested applications.
The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
|ICC/IF||1/100. PubMed: 18617611|
|WB||1/200. Predicted molecular weight: 99,120 kDa.|
Staining of formalin-fixed tissues is required by boiling tissue sections in 10mM citrate buffer, pH 6.0 for 10 min followed by cooling at RT for 20 min.
ab172730 - Rabbit monoclonal IgG, is suitable for use as an isotype control with this antibody.
FunctionThe steroid hormones and their receptors are involved in the regulation of eukaryotic gene expression and affect cellular proliferation and differentiation in target tissues. Progesterone receptor isoform B (PRB) is involved activation of c-SRC/MAPK signaling on hormone stimulation.
Isoform A: inactive in stimulating c-Src/MAPK signaling on hormone stimulation.
Isoform 4: Increases mitochondrial membrane potential and cellular respiration upon stimulation by progesterone.
Sequence similaritiesBelongs to the nuclear hormone receptor family. NR3 subfamily.
Contains 1 nuclear receptor DNA-binding domain.
DomainComposed of three domains: a modulating N-terminal domain, a DNA-binding domain and a C-terminal ligand-binding domain.
modificationsPhosphorylated on multiple serine sites. Several of these sites are hormone-dependent. Phosphorylation on Ser-294 occurs preferentially on isoform B, is highly hormone-dependent and modulates ubiquitination and sumoylation on Lys-388. Phosphorylation on Ser-102 and Ser-345 also requires induction by hormone. Basal phosphorylation on Ser-81, Ser-162, Ser-190 and Ser-400 is increased in response to progesterone and can be phosphorylated in vitro by the CDK2-A1 complex. Increased levels of phosphorylation on Ser-400 also in the presence of EGF, heregulin, IGF, PMA and FBS. Phosphorylation at this site by CDK2 is ligand-independent, and increases nuclear translocation and transcriptional activity. Phosphorylation at Ser-162 and Ser-294, but not at Ser-190, is impaired during the G(2)/M phase of the cell cycle. Phosphorylation on Ser-345 by ERK1/2 MAPK is required for interaction with SP1.
Sumoylation is hormone-dependent and represses transcriptional activity. Sumoylation on all three sites is enhanced by PIAS3. Desumoylated by SENP1. Sumoylation on Lys-388, the main site of sumoylation, is repressed by ubiquitination on the same site, and modulated by phosphorylation at Ser-294.
Ubiquitination is hormone-dependent and represses sumoylation on the same site. Promoted by MAPK-mediated phosphorylation on Ser-294.
Palmitoylated by ZDHHC7 and ZDHHC21. Palmitoylation is required for plasma membrane targeting and for rapid intracellular signaling via ERK and AKT kinases and cAMP generation.
Cellular localizationNucleus. Cytoplasm. Nucleoplasmic shuttling is both homone- and cell cycle-dependent. On hormone stimulation, retained in the cytoplasm in the G(1) and G(2)/M phases; Mitochondrion outer membrane and Nucleus. Cytoplasm. Mainly nuclear.
- Information by UniProt
- NR3C3 antibody
- Nuclear receptor subfamily 3 group C member 3 antibody
- PGR antibody
Immunohistochemistry analysis of human breast carcinoma tissue labelling SP2 with ab16661.
ab16661 staining rat ovary tissue sections by IHC-P. Sections were fixed in 10% buffered formalin and subjected to heat mediated antigen retrieval in 10mM citrate buffer pH 6.0 prior to blocking with 5% serum for 20 minutes at 20°C. The primary antibody was diluted 1/50 in TBS (with Tween) and incubated with the sample for 16 hours at 4°C. A HRP conjugated goat anti-rabbit was used as the secondary antibody.
Overlay histogram showing T47D cells stained with ab16661 (red line). The cells were fixed with 80% methanol (5 min) and then permeabilized with 0.1% PBS-Tween for 20 min. The cells were then incubated in 1x PBS / 10% normal goat serum / 0.3M glycine to block non-specific protein-protein interactions followed by the antibody (ab16661, 1/100 dilution) for 30 min at 22ºC. The secondary antibody used was DyLight® 488 goat anti-rabbit IgG (H+L) (ab96899) at 1/500 dilution for 30 min at 22ºC. Isotype control antibody (black line) was rabbit IgG (monoclonal) (1µg/1x106 cells) used under the same conditions. Acquisition of >5,000 events was performed.
This product has been referenced in:
- Yu P et al. Treatment strategy and prognostic factors for Krukenberg tumors of gastric origin: report of a 10-year single-center experience from China. Oncotarget 8:82558-82570 (2017). Read more (PubMed: 29137284) »
- Alvarado A et al. Effects of exercise training on breast cancer metastasis in a rat model. Int J Exp Pathol 98:40-46 (2017). IHC-P ; Human . Read more (PubMed: 28556395) »