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Endothelin-1 (human, porcine), [125I]Tyr13, 50µCi

Endothelin-1 (ET-1), labeled with 125I on the tyrosine 13 residue. Endoethlin-1 is a vasoconstrictor that acts as an endogenous agonist at endothelin receptors. Endothelin receptors are a class of GPCRs that are potential drug targets for hypertension and cancer.

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Part Number Unit Size List Price Your Price Quantity
NEX259005UC 5 µCi 912.00 USD
NEX259010UC 10 µCi 1257.00 USD
NEX259050UC 50 µCi 2510.00 USD
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We offer radioligands and radiolabeled biomolecules to use as tracers, for radioimmunoassays (RIAs), for autoradiographic visualization, or for performing saturation and competition radioligand binding assays to determine receptor expression levels (Bmax), dissociation constants (Kd), association and dissociation rates (kon and koff), and inhibitor constants (Ki) for a variety of receptors. We develop our radioligands to the highest specific activity possible and provide high purity resulting in low non-specific binding products. Each of our ultra-pure radiolabeled compounds is fully characterized for pharmacological action and validated in binding assays.

Radiochemicals remain the most sensitive method for probing binding biology; yielding unprecedented sensitivity gives results that technicians and scientists can trust. For over 50 years, PerkinElmer has been a leading supplier of New England Nuclear (NEN) radiochemicals, liquid scintillation cocktails, vials and nuclear counting detection instruments.

References for NEX259:

  1. Holland, J.D., Singh, P., Brennand, J.C., Garman, A.J. (1994), A Nonseparation Microplate Receptor Binding Assay, Analytical Biochemistry, 222 (2): 516-518.
  2. Hunt, J.T., Lee, V.G., McMullen, D., Liu, E.C., Bolgar, M., Delaney, C.L., Festin, S.M., Floyd, D.M., Hedberg, A., Natarajan, S., et al. (1993), Structure-activity studies of endothelin leading to novel peptide ETA antagonists. Bioorg Med Chem, 1 (1): 59-65.


Concentration 2.93 MBq/mL
Detection Method Radiometric
Fresh Lot Days First Monday of each month
Label Position Nominally Labeled
Product Brand Name NEN Radiolabeled Ligands
Radioisotope I-125
Radionuclide 125I
Receptor Type Endothelin
Shipping Condition Dry Ice
Special Ordering Information This is a radioactive product - shipping address must have a license to receive radioactive materials.
Therapeutic Area CNS & Neurologic, Pain, Cardiovascular, Inflammation, Cancer
Unit Size 50 µCi

Resources, Events & More

Resource Type File Name File Format
Technical Note Low Volume Handling Suggestions for Iodine-125 Labeled Compounds PDF  177 KB
Flyer Using the NENSure Packaging System from PerkinElmer PDF  447 KB