kotransportører
Kotransportører, also known as cotransporters or symporters, are a type of membrane transport protein found in the cell membranes of both prokaryotic and eukaryotic organisms. They function by facilitating the movement of two different solute molecules across a biological membrane simultaneously. Crucially, both solutes move in the same direction, either into or out of the cell. This coupled transport mechanism relies on the electrochemical gradient of one of the transported solutes, typically an ion like sodium (Na+) or potassium (K+), to drive the movement of the other solute against its own concentration gradient.
The energy for cotransport is derived from the stored potential energy in the ion gradient. This gradient
Examples of cotransporters include the sodium-glucose cotransporter (SGLT) family, which are vital for glucose reabsorption in