...-stimulated by preloading vesicles with K + . At pH 5·0, NaCl-dependent glutamate uptake occurred by an electroneutral process, whereas Na + -dependent d -[ 3 H]glucose uptake at this pH was electrogenic. l -[ 3 H]glutamate influx exhibited both carrier-mediated and apparent diffusional transport components...

... by Company of Biologists 1987 lysine transport brush border membrane vesicles Na + -dependence membrane potential ion gradients Homarus americanas hepatopancreas In short-term incubations, 5 μl of membrane suspension was mixed for predetermined times with 45 μl of buffer containing...