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Signal transmission between neurons is regulated by the release of neurotransmitters at the synapse. This process, which is controlled by a complex pathway of membrane trafficking in the presynaptic nerve terminal, leads to membrane fusion and neurotransmitter secretion. Sec8 is a hydrophilic protein of 975 amino acids that is highly expressed in brain and kidney. It is homologus with the yeastsecretory protein, Sec8p. In yeast, Sec8 is essential for the Golgi-to-plasma membrane traffic of proteins during constitutive secretion. In rat brain, Sec8 colocalizes with Rab3 and Syntaxin-1a, two important proteins that regulate the fusion of the synaptic vesicle to the plasma membrane. The primary structure of Sec8, a coiled-coil domain (residues 34-99), is commonly found in other proteins important in secretory pathways. This antibody is routinely tested by western blot analysis. Other applications were tested at BD Biosciences Pharmingen during antibody development only or reported in the literature.
