... vesicles Na + -dependent hepatopancreas Homarus americanus ion gradients During the last two decades several studies have been conducted on the crustacean gastrointestinal tract to determine the site and properties of nutrient transport in this group of animals. These studies have shown...

... of the respective counterions, suggesting cotransport between the amino acid and the two ions with a stoichiometry of 1 Na + : 1 Cl − : 1 glutamate. 18 02 1987 © 1987 by Company of Biologists 1987 glutamate transport brush border membrane vesicles cotransport Na + -dependence ion gradients...

... 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...