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 (B_max), dissociation constants (K_d), association and dissociation rates (k_on and k_off), and inhibitor constants (K_i) 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 NEX358:

1. Garza, A., Huang, L.Z., Son, J.H., Winzer-Serhan, U.H. (2009), Expression of nicotinic acetylcholine receptors and subunit messenger RNAs in the enteric nervous system of the neonatal rat. Neuroscience, 158 (4): 1521-1529.
2. Huang, L.Z., Winzer-Serhan, U.H. (2006), Effects of paraformaldehyde fixation on nicotinic acetylcholine receptor binding in adult and developing rat brain sections. J Neurosci Methods, 153 (2): 312-317.