Radiometric detection is considered the gold standard for many applications, from drug discovery and development to plant sciences. The technique achieves sub-femtogram sensitivity levels, and quantitates the binding and activity of radiolabeled compounds with high specificity and sensitivity. As the leading supplier of research radiochemicals, we offer a broad portfolio of products for any radiochemistry need.
Our radiochemical analysis products include:
Radionuclides such as 124I, 14C,?89Zr, 90Y, 125I, 131I, 22Na, 32P, 35S, 3H, 45Ca, 51Cr, 54Mn, 55Fe, 59Fe, 85Sr
EasyTag? protein labeling mixes
EasyTide radiolabeled nucleotides
NEN radiolabeled compounds
SPA Enzymatic assays and imaging beads
Our radiolabeled compounds are useful in a wide range of applications:
Research in cancer, CNS and neurologic disease, cardiovascular and metabolic disease, inflammation, and other disorders
Kinetic and mechanistic studies
Radiometric cAMP assays
Detection of binding to over 80 different receptor types
Our radiometric reagents are not reliant on the use of antibodies for detection and read-out – just one of the reasons they are so widely used.
Tritiated SB-269970. SB-269970 is believed to act as a selective serotonin 5-HT7 antagonist, or possibly an inverse agonist. This product will have scheduled availability dates on the first Monday in June.
Triiodothyronine (T3) labeled with 125I. Triiodothyronine is a thyroid hormone that affects growth and development, body temperature, and heart rate. T3 detection by radioimmunoassay is a common test of thyroid gland function. This product is offered at three specific activities. Specific activity indicates how much radioactivity there is per molecule of ligand. Several of our 125I-labeled ligands are offered at maximum specific activity (2200 Ci/mmol if one 125I labeling site is available, 4400 Ci/mmol if two labeling sites are available).
NEX446 Tyr11 Somatostatin-14 is radioiodinated with no-carrier-added 125I using amodified lactoperoxidase procedure and is purified by reversed phase HPLC. This method predominantly labels tyrosine residues.
Glucagon, labeled with 125I. This product is receptor grade, and was developed for use in receptor binding assays. Glucagon binds and activates glucagon receptor, a GPCR that is a potential drug target for diabetes, hyperplasia, and pancreatic disorders.
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.
N-Methyl-4-phenylpyridinium (MPP+) acetate, tritiated on the methyl group. MPP+ is a substrate for the organic cation ion transporter (OCT), the dopamine transporter (DAT), the norepinephrine transporter (NET), and the serotonin transporter (SERT).