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Localization of glutamate transporters and glutamine transporters around an excitatory synapse. Plasma membrane glutamate transporter EAATs are on the plasma membrane of presynaptic terminals and astrocyte processes. Vesicular glutamate transporter vGluTs are on synaptic vesicles. SNATs transports glutamine at the plasma membrane of neurons and astrocytes. Concentrations of glutamate and glutamine in each compartment are indicated.
