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  • 1
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Journal of neurochemistry 50 (1988), S. 0 
    ISSN: 1471-4159
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Abstract: γ-Aminobutyric acid (GABA) was taken up by a MgATP-dependent mechanism into synaptic vesicles isolated by hypoosmotic shock and density gradient centrifugation. The properties of the vesicular uptake differed clearly from those of synaptosomal and glial uptake, both with respect to Na+, Mg2+, and ATP dependence and with respect to response to general GABA uptake inhibitors such as nipecotic acid, diaminobutyric acid, and β-alanine. The uptake showed a Km of 5.6 mM and a net uptake rate of 1,500 pmol/min/mg of protein. It is suggested that the vesicular uptake of GABA is driven by an electrochemical proton gradient generated by a Mg2+-ATPase.
    Type of Medium: Electronic Resource
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