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Guinea pig Anti-Endothelin Receptor B Antibody

EDNRB, ET-B, ETB, ETRB, Endothelin B receptor, Endothelin receptor non-selective type

Cat #: AER-002-GP (formerly AGP-037)
Alternative Name EDNRB, ET-B, ETB, ETRB, Endothelin B receptor, Endothelin receptor non-selective type
Lyophilized Powder yes
Type: Polyclonal
Host: Guinea pig
Reactivity: h, m, r
  • Peptide CEMLRKKSGMQIALND, corresponding to amino acid residues 298-314 of rat ET-B (Accession P21451). 3rd intracellular loop.
Accession (Uniprot) Number P21451
Gene ID 50672
Peptide confirmation Confirmed by amino acid analysis and mass spectrometry.
Homology Mouse, human - identical.
RRID AB_2756607.
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 Guinea pig total 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 0.85 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: wb
May also work in: ic*, ifc*, ih*, ip*
Western blot
  • Western blot analysis of rat (lanes 1 and 3) and mouse (lanes 2 and 4) brain lysates:
    Western blot analysis of rat (lanes 1 and 3) and mouse (lanes 2 and 4) brain lysates:
    1,2. Guinea pig Anti-Endothelin Receptor B Antibody (#AER-002-GP), (1:500).
    3,4. Guinea pig Anti-Endothelin Receptor B Antibody, preincubated with Endothelin Receptor B Blocking Peptide (#BLP-ER002).
  1. Bender, S.B. et al. (2014) J. Physiol. 592, 1757.
  2. Bramall, A.N. et al. (2013) PLoS ONE 8, e58023.
  3. Jacques, D. et al. (2005) Peptides 26, 1427.
Scientific background

Endothelins (ET-1, 2, and 3) are considered to be very powerful vasoconstrictive substances. In humans, endothelins mediate their actions via two specific G-Protein coupled receptors, ETAR and ETBR. Both ETAR and ETBR are present in the heart and in human myocardium at similar levels.1,2

The endothelin receptors differ in their ligand specificity. While ETAR has varying affinities for the endothelin isoforms (ET-1 > ET-2 > ET-3), ETBR shows no selective affinity.2,3 

Subsequent studies have demonstrated the presence of endothelins in vascular, as well as in non-vascular, cells and tissues, having multiple biological activities.

Currently, there is increasing evidence that ET-1 may modulate mitogenesis, apoptosis, angiogenesis tumor invasion and the development of metastases.3

Until recently, it was thought that all cellular activities of the endothelins were mediated through their interactions with their cell surface receptors. However, a recent study demonstrated that cardiac nuclei also possess both ETAR and ETBR subtypes, which are functional and coupled to signaling mechanisms within the nuclear membrane.2

Hypermethylation of the ETBR correlated with transcriptional down-regulation and reduced expression of ETB receptor was observed in several prostate, bladder and colon cancer cell lines.3

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
Last update: 08/01/2023

Guinea pig Anti-Endothelin Receptor B Antibody (#AER-002-GP) is a highly specific antibody directed against an epitope of rat ET-B. The antibody can be used in western blot analysis. It has been designed to recognize ET-B from rat, mouse, and human samples. The antigen used to immunize guinea pigs is the same as Anti-Endothelin Receptor B Antibody (#AER-002) raised in rabbit. Our line of guinea pig antibodies enables more flexibility with our products such as multiplex staining studies, immunoprecipitation, etc.

For research purposes only, not for human use



Scientific Background

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