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Analysis of Endothelins by Enzyme-Linked Immunosorbent Assay and Radioimmunoassay

  • Anthony P. Davenport
  • Rhoda E. Kuc
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Part of the Methods in Molecular Biology™ book series (MIMB, volume 206)

Abstract

This chapter describes procedures for the measurement of endothelin peptides by antibodies, focusing on the two main immunoassay techniques that are widely used. In a two-site “sandwich” enzyme-linked immunosorbent assay (ELISA) one antibody is immobilized to a solid phase and captures the endothelin (ET) peptide(s), which is quantified by the binding to this complex of a second, enzyme-labeled antibody in the liquid phase. In a radioimmunoassay (RIA), the ET peptide(s) to be measured competes for the binding of a fixed concentration of radiolabeled peptide to a fixed concentration of antibody in the liquid phase. In contrast to the ELISA, the immune complex measured in a RIA does not contain the analyte and therefore inverse (falling) standard curves of peptide concentration vs bound labeled peptide are produced. For a more detailed discussion of the two techniques, refs. 1 and 2 are recommended.

Keywords

Brain Natriuretic Peptide Amersham Pharmacia Biotech Sandwich ELISAs Magnetic Rack Vasoactive Intestinal Contractor 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Humana Press Inc. 2002

Authors and Affiliations

  • Anthony P. Davenport
    • 1
  • Rhoda E. Kuc
    • 1
  1. 1.Clinical Pharmacology UnitUniversity of CambridgeCambridgeUK

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