Electrogenic amino acid transport

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Abstract
Na+-Coupled nonelectrolyte transport in animal cells is reviewed. This transport of electrically neutral solutes is electrogenic and influences and is influenced by the potential difference existing across the plasma membrane. Possible hormonal control (insulin, glucocorticoid, etc.) of amino acid transport and the effects of changes in the rate of cell growth on this process are discussed. Electrochemical gradient, energy dependence, ATP and the role of K+ in the transport are discussed. Mice Ehrlich ascites tumor cells are used as a model for the study of the structural characteristics of amino acid transport systems.