Aldo R. Castañeda Professor of Cardiovascular Research, Professor of Neurobiology, Harvard Medical School, Howard Hughes Medical Institute, Enders 1309, Children's Hospital Boston, Boston, MA 02115, USA.
Cell, 01 Dec 2007, 131(6):1047-1058
PMID: 18083096
Calcium ions (Ca(2+)) impact nearly every aspect of cellular life. This review examines the principles of Ca(2+) signaling, from changes in protein conformations driven by Ca(2+) to the mechanisms that control Ca(2+) levels in the cytoplasm and organelles. Also discussed is the highly localized nature of Ca(2+)-mediated signal transduction and its specific roles in excitability, exocytosis, motility, apoptosis, and transcription.