24 DEC 2013 by ideonexus

 The Signaling Pathway

In a typical signaling pathway, proteins are continually being modified and demodified. Kinases and phosphatases work ceaselessly like ants in a nest, adding phosphate groups to proteins and removing them again. It seems a pointless exercise, especially when you consider that each cycle of addition and removal costs the cell one molecule of ATP—one unit of precious energy. Indeed, cyclic reactions of this kind were initially labeled “futile.” But the adjective is misleading. The additio...
Folksonomies: neurology
Folksonomies: neurology
  1  notes

The underlying cyclical process of a synapse firing that turns it into a "tunable" device.