General descriptionMillipore′s Ready-to-Assay GPCR frozen cells are designed for simple, rapid calcium assays with no requirement for intensive cell culturing. Millipore has optimized the freezing conditions to provide cells with high viability and functionality post-thaw. The user simply thaws the cells and resuspends them in media, dispenses cell suspension into assay plates and, following over night recovery, assays for calcium response.
Bombesin, a bioactive peptide first identified in amphibian skin, is related to two mammalian peptides, gastrin-releasing peptide (GRP) and neuromedin B (NMB). A family of 3 GPCRs, including NMB-R (BB1), GRP-R (BB2) and BRS-3 (BB3), mediate the biological effects of the peptides. The receptors differ in their affinities for the peptides; BB2 binds to GRP with 50-300-fold greater affinity than to NMB, whereas BB1 binds to NMB with 10-800-fold greater affinity than to GRP (Tokita et al., 2004). Binding of ligand to BB1 activates Gq to increase intracellular calcium concentrations. The CNS is a major site of NMB and BB1 expression, and BB1 appears to be involved in thermoregulation (Ohki-Hamazaki et al., 2005).Millipore′s cloned human BB1-expressing cell line is made in the Chem-1 host, which supports high levels of recombinant BB1 expression on the cell surface for functional detection via the calcium signaling pathway. Thus, the cell line is an ideal tool for screening for agonists, antagonists and modulators at BB1.
Other NotesPack contains 2 vials of mycoplasma-free cells, 1 ml per vial. Fifty (50) mL of Media Component.
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