Scientists Identify How Major Biological Sensor in the Body Works
Monday, June 6, 2011 - 20:30
in Biology & Nature
A biological sensor is a critical part of a human cell's control system that is able to trigger a number of cell activities. A type of sensor known as the "gating ring" can open a channel that allows a flow of potassium ions through the cell's wall or membrane -- similar to the way a subway turnstile allows people into a station. This flow of ions, in turn, is involved in the regulation of crucial bodily activities like blood pressure, insulin secretion and brain signaling. But the biophysical functioning of the gating ring sensor has not been clearly understood. Now, UCLA researchers have uncovered for the first time the sensor's molecular mechanism, shedding new light on the complexity of cells' control systems.