How does potassium enter cells? Surprising discovery of a chimeric protein

For decades it was assumed that protein channels and protein pumps fulfilled completely different functions and worked independently of each other. Researchers at Goethe University Frankfurt and University Groningen have now elucidated the transport path of a protein complex that combines both mechanisms: it first receives potassium from the channel and then transfers it to the pump, from where it is transported to the cell. (Mehr in: Pressemitteilungen – idw – Informationsdienst Wissenschaft)