Gα13,Gα13-GTP

Activation Assay Kit

Configuration-specific monoclonal antibody that recognizes Gα 13-GTP, but not Gα 13-GDP The only available Gα 13 activation assay kit directly measures the level of Gα 13-GTP Providing reliable results with consistent reproducibility than other Gα 13 activation assay kits based on certain downstream signaling pathways Providing shorter experimental time Could be used to monitor the activation of Gα 13 in cells and in tissues by immunohistochemistry

Tanda Biosciences Gα 13 Activation Assay Kit bases on the configuration-specific anti-Gα 13-GTP monoclonal antibody to measure the active Gα 13-GTP levels, either from cell extracts or from in vitro GTPgamma;S loading Gα 13 activation assays. Briefly, anti-active Gα 13 mouse monoclonal antibody will be incubated with cell lysates containing Gα 13-GTP. The bound active Gα 13 will then be pulled down by protein A/G agarose. The precipitated active Gα 13 will be detected by immunoblot analysis using anti-Gα 13 rabbit polyclonal antibody.

A structurally diverse repertoire of ligands, from photons to large peptides, activates GPCRs to elicit their physiological functions. Ligand-bound GPCRs, in turn, function as guanine nucleotide exchange factors catalyzing the exchange of GDP bound on the Gα subunit with GTP in the presence of Gβγ, causing the dissociation of the Gα subunit from the Gβγ dimer to form two functional units (α and Gβγ). Both Gα and Gβγ subunits signal to various cellular signaling pathways. Based on the sequence and functional homologies, G proteins are grouped into four families: G s, G i, G q, and G 12. As increasing numbers of effectors and interacting proteins for these G proteins have been identified, the physiological processes in which G proteins participate are multiplying. Among the four subfamilies of G proteins, the function of G 12/13 subfamily is less well understood. In this family, there are two members, G 12 and G 13, that are expressed ubiquitously. Gα 12 knockout mice appeared normal. Gα 13 knockout mice displayed embryonic lethality (~E9.5). The Gα 13-/- mouse embryos had defective vascular systems. G 13 is also essential for receptor tyrosine kinase-induced migration of fibroblast and endothelial cells. Tanda Biosciences Gα 13 Activation Assay Kit provides a simple and fast tool to monitor the activation of Gα 13. Each kit provides sufficient quantities to perform 30 assays.

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