Decoding complex Ca2+ signals through the modulation of Ras signaling.

Calcium (Ca(2+)) is a universal regulator of a wide variety of cellular processes. For such control to be achieved, information is encoded within spatial and temporal components of the underlying Ca(2+) signal. One pathway through which Ca(2+) signals are decoded is the Ras binary switch. Here I describe some recent advances that have shed light on how cells can decode the spatial and temporal aspects of Ca(2+) signals through the regulation of this important signalling switch.