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Cholecystokinin Octapeptide, [125I]-, Bolton-Hunter Labeled, 10µCi

Cholecystokinin Octapeptide (CCK-8), labeled with 125I. Cholecystokinin is a neuropeptide that exists in several forms, identified by the number of amino acids in the peptide sequence. CCK8 contains 8 amino acids. The sulphated version of cholecystokinin can bind both Cholecystokinin A and Cholecystokinin B receptors. These receptors are involved in anxiety, feeding, and locomotion and are potential drug targets for depression and satiety.

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10 µCi
2936.00 USD
50 µCi
13800.00 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 NEX203:

  1. Kopin, A.S., McBride, E.W., Chen, C., Freidinger, R.M., Chen, D., Zhao, C.M., Beinborn, M. (2003), Identification of a series of CCK-2 receptor nonpeptide agonists: sensitivity to stereochemistry and a receptor point mutation. PNAS, 100 (9): 5525-5530.
  2. Kopin, A.S., Lee, Y.M., McBride, E.W., Miller, L.J., Lu, M., Lin, H.Y., Kolakowski, L.F. Jr, Beinborn, M. (1992), Expression cloning and characterization of the canine parietal cell gastrin receptor. PNAS, 89 (8): 3605-3609.


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 Cholecystokinin
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, Inflammation, Gastrointestinal
Unit Size 10 µCi