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Beschreibung

Human sst1 , Somatostatin, a 14 or 28 amino acid peptide, inhibits hormone secretion from exocrine glands, and displays an antiproliferative activity on a number of cell types. A family of 5 Gi-coupled receptors mediates the effects of somatostatin. The classical activity of somatostatin of inhibiting growth hormone release from the pituitary appears to be mediated by sst1. In addition, sst1 functions as an inhibitory autoreceptor on somatostatin neurons in the hippocampus, hypothalamus, basal ganglia and retina (Thermos et al., 2006). The somatostatin receptors are targets for anticancer drugs and for treatment of hormonal dysfunction. Millipore's sst1 membrane preparations are crude membrane preparations made from our proprietary stable recombinant cell lines to ensure high-level of GPCR surface expression, thus, they are ideal HTS tools for screening of agonists and antagonists of sst1. The membrane preparations exhibit a Kd of 1.4 nM for [125I]- somatostatin-14. With 0.5 nM [125I]- somatostatin-14, 5 mug/well sst1 Membrane Prep yields greater than 12 fold signal-to-background ratio.