'We are highly interested in these passive transport processes because of our involvement in a project to build a synthetic cell,' says Poolman. 'If you can use passive diffusion instead of an active ...

Aquaporins (AQPs) are water channel proteins that are expressed in the plasma membranes of cells. They are involved in many physiological functions, including renal water balance, epithelial fluid ...

Defying one of biology’s more persistent dogmas, a potassium channel combines functions once thought to be invariably asunder. This channel, which is found in common bacteria, incorporates a subunit ...

Cells continuously move materials in and out through their cell walls. Facilitated transport is one way of moving those materials without expending cellular energy. In facilitated transport, materials ...