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Structural and mechanistic diversity of secondary transporters

Iwona Sobczak1, Juke S Lolkema

  • 1Department of Microbiology, Groningen Biomolecular and Biotechnology Institute, University of Groningen, Kerklaan 30, 9751 NN Haren, The Netherlands.

Current Opinion in Microbiology
|April 2, 2005
PubMed

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One example of how cells use the energy contained in electrochemical gradients is demonstrated by glucose transport into cells. The ion vital to this process is sodium (Na+), which is typically present in higher concentrations extracellularly than in the cytosol. Such a concentration difference is due, in part, to the action of an enzyme "pump" embedded in the cellular membrane that actively expels Na+ from a cell. Importantly, as this pump contributes to the high concentration of...
Secondary Active Transport01:32

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