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Anti-Prostaglandin E Receptor EP1 (PTGER1) (extracellular) Antibody

Prostaglandin E2 receptor EP1 subtype, PGE2 receptor EP1 subtype, Prostanoid EP1 receptor, PTGEREP1

Cat #: APR-063
Alternative Name Prostaglandin E2 receptor EP1 subtype, PGE2 receptor EP1 subtype, Prostanoid EP1 receptor, PTGEREP1
Lyophilized Powder yes
Type: Polyclonal
Host: Rabbit
Reactivity: h, m, r
Immunogen
  • Peptide (C)GPDDRRRWGSRGPR, corresponding to amino acid residues 249-262 of mouse prostanoid EP1 receptor (Accession P35375). 3rd extracellular loop.
Accession (Uniprot) Number P35375
Gene ID 19216
Peptide confirmation Confirmed by amino acid analysis and mass spectrometry.
Homology Rat - 13/14 amino acid residues identical; human - 11/14 amino acid residues identical.
RRID AB_2341057.
Purity Affinity purified on immobilized antigen.
Form Lyophilized powder. Reconstituted antibody contains phosphate buffered saline (PBS), pH 7.4, 1% BSA, 0.05% NaN3.
Isotype Rabbit IgG.
Storage before reconstitution The antibody ships as a lyophilized powder at room temperature. Upon arrival, it should be stored at -20°C.
Reconstitution 25 µl, 50 µl or 0.2 ml double distilled water (DDW), depending on the sample size.
Antibody concentration after reconstitution 0.8 mg/ml.
Storage after reconstitution The reconstituted solution can be stored at 4°C for up to 1 week. For longer periods, small aliquots should be stored at -20°C. Avoid multiple freezing and thawing. Centrifuge all antibody preparations before use (10000 x g 5 min).
Standard quality control of each lot Western blot analysis.
Applications: ic, if, ifc, lci, wb
May also work in: ih*, ip*
Western blot
  • Western blot analysis of rat colon lysate (lanes 1 and 4), mouse kidney lysate (lanes 2 and 5) and human HT-29 colon adenocarcinoma cell lysate (lanes 3 and 6):
    Western blot analysis of rat colon lysate (lanes 1 and 4), mouse kidney lysate (lanes 2 and 5) and human HT-29 colon adenocarcinoma cell lysate (lanes 3 and 6):
    1-3. Anti-Prostaglandin E Receptor EP1 (PTGER1) (extracellular) Antibody (#APR-063), (1:200).
    4-6. Anti-Prostaglandin E Receptor EP1 (PTGER1) (extracellular) Antibody, preincubated with Prostaglandin E Receptor EP1/PTGER1 (extracellular) Blocking Peptide (#BLP-PR063).
Indirect flow cytometry
  • Cell surface detection of prostanoid EP1 receptor in live intact human THP-1 monocytic leukemia cell line:
    Cell surface detection of prostanoid EP1 receptor in live intact human THP-1 monocytic leukemia cell line:
    ___ Unstained cells + goat-anti-rabbit-AlexaFluor-488.
    ___ Cells + Anti-Prostaglandin E Receptor EP1 (PTGER1) (extracellular) Antibody (#APR-063), (1:20) + goat-anti-rabbit- AlexaFluor-488.
Live cell imaging / Immunocytochemistry
  • Expression of prostanoid EP1 receptor in human U-87 MG cells
    Expression of prostanoid EP1 receptor in human U-87 MG cells
    Cell surface detection of prostanoid EP1 receptor in live intact human glioblastoma U-87 MG cells. A. Extracellular staining of cells with Anti-Prostaglandin E Receptor EP1 (PTGER1) (extracellular) Antibody (#APR-063), (1:50) followed by goat anti-rabbit-AlexaFluor-594 secondary antibody (red). B. Live image of the cells. C. Merge of A and B.
References
  1. Funk, D.C. et al. (1993) J. Biol. Chem. 268, 26767.
  2. Zare, B. et al. (2011) Sci. Pharm. 79, 793.
  3. Sun, B. et al. (2013) Mol. Cell. Biochem. 378, 195.
  4. O’Callaghan, G. et al. (2013) Int. J. Cancer 133, 825.
  5. Bergmann, C. et al. (2007) Cancer Res. 67, 8865.
Scientific background

Prostaglandin (PG) E2 is involved in a number of physiological and pathophysiological events in many tissues throughout the body. The biological effects of PGE2 are mediated through interaction with specific membrane-bound G-protein coupled prostanoid EP receptors. There are four subtypes of the EP receptor, termed EP1, EP2, EP3 and EP4, which have been defined on the basis of their different pharmacological profiles and signal transduction pathways1.

EP1 is characterized by the presence of a helical bundle consisting of seven hydrophobic transmembrane helices (TM1-TM7), which are connected through six alternating extracellular and intracellular loops. The N-terminus is located on the extracellular side of the membrane, whereas the C-terminus is located on the intracellular side2.

EP1 receptors are thought to mediate contraction of smooth muscle in various tissues such as the gastrointestinal tract, respiratory tract, vas deferens, myometrium and the iris sphincter muscle and may also be important for absorption inhibition in the small intestine as well as enhancement of neuronal activity3.

Human colon cancer cells express the EP1 receptor. Furthermore, EP1 receptor antagonists inhibit chemically induced breast cancer development in rats and reduce the number of skin tumors per mouse following UVB exposure4,5.

Application key:

CBE- Cell-based ELISA, FC- Flow cytometry, ICC- Immunocytochemistry, IE- Indirect ELISA, IF- Immunofluorescence, IFC- Indirect flow cytometry, IHC- Immunohistochemistry, IP- Immunoprecipitation, LCI- Live cell imaging, N- Neutralization, WB- Western blot

Species reactivity key:

H- Human, M- Mouse, R- Rat
Lyophilized Powder
Last update: 12/08/2021

Anti-Prostaglandin E Receptor EP1 (PTGER1) (extracellular) Antibody (#APR-063) is a highly specific antibody directed against an epitope of the mouse protein. The antibody can be used in western blot, live cell flow cytometry, and live cell imaging applications. It has been designed to recognize EP1 receptor from mouse, rat, and human samples.

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For research purposes only, not for human use
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