In a surprising new finding, neuroscientists have shown that human neurons have a much lower density of ion channels than expected, compared to the neurons of other mammals. Ion channels produce ...

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 ...

Potassium channels can become nonconducting via inactivation at a gate inside the highly conserved selectivity filter (SF) region near the extracellular side of the membrane. In certain ligand-gated ...

A new study has rewritten the conventionally understood evolutionary history of certain ion channels -- proteins critical for electrical signaling in the nervous system. The study shows that the ...

Lysosomes are the recycling centers of human cells. Larger molecules are broken down inside the membrane-enclosed vesicles. Malfunctions can lead to neurodegenerative diseases such as Parkinson's.