Potassium channels are essential membrane proteins that enable the selective and rapid transport of K⁺ ions, a process fundamental to cellular excitability and signal transduction. Recent research has ...

(Up) Molecular structure of the selectivity filter of a KcsA potassium channel. Adjacent carbonyl rings exhibit a 27 degree rotation. Inspired by this structural feature, bi-layer graphene ...

They are literally channels for communication: Pore-forming proteins in living cells, termed ion channels, are embedded in the outer membrane of almost all cell types and play a crucial role in the ...

Ion selectivity is an important property of cell membrane ion channels. For example, potassium ion channels are more permeable to potassium ions than to sodium ions. The mechanism underlying the ready ...

Intrigued by the properties of ion channel proteins commonly observed in cells, researchers have developed the first synthetic mechanosensitive potassium channel using a newly developed aromatic ...

The cell membranes of all organisms contain ion channels that permit ions to pass into or out of the cell, and these channels play extremely important roles in fundamental physiological processes such ...

Scientists applied molecular dynamics simulations to visualize how potassium ions pass through a potassium ion channel at atomic resolution for the first time. (Nanowerk News) The patch clamp ...

Intrigued by the properties of ion channel proteins commonly observed in cells, Tokyo Tech researchers have developed the first synthetic mechanosensitive potassium channel using a newly developed ...

For this article, author Jennifer Fisher Wilson interviewed Roderick MacKinnon, Howard Hughes Medical Institute investigator and head of the Laboratory of Molecular Neurobiology and Biophysics at ...

Do only potassium ions pass through the selectivity filter of a potassium channel, or are there water molecules between the ions? This question has been a source of controversy for years. Researchers ...

Following this design principle, the researchers create angstrom-scale pores in bi-layer graphene sheets, and decorate the two pore edges with twisted rings of carbonyl groups. The artificial ion ...