title: Calcium gradients and the Golgi.
abstract: Changes in intracellular free calcium regulate many intracellular processes. With respect to the secretory pathway and the Golgi apparatus, changes in calcium concentration occurring either in the adjacent cytosol or within the lumen of the Golgi act to regulate Golgi function. Conversely, the Golgi sequesters calcium to shape cytosolic calcium signals as well as initiate them by releasing calcium via inositol-1,4,5-triphosphate (IP(3)) receptors, located on Golgi membranes. Local calcium transients juxtaposed to the Golgi (arising from release by the Golgi or other organelles) can activate calcium dependent signalling molecules located on or around the Golgi. This review focuses on the reciprocal relationship between the cell biology of the Golgi apparatus and intracellular calcium homeostasis.
authors.affiliation: The Physiological Laboratory, The University of Liverpool, Crown Street, Liverpool, UK. dolmann@ninds.nih.gov
authors.forename: Nick J
authors.initials: NJ
authors.lastname: Dolman
authors.forename: Alexei V
authors.initials: AV
authors.lastname: Tepikin
mesh_terms: D000818:Animals; D020013:Calcium Signaling / Q000502:physiology*; D002135:Calcium-Binding Proteins / Q000378:metabolism; D006056:Golgi Apparatus / Q000187:drug effects / Q000502:physiology*; D053496:Inositol 1,4,5-Trisphosphate Receptors / Q000378:metabolism; D008928:Mitochondria / Q000502:physiology
chemical_list: D002135:Calcium-Binding Proteins; D053496:Inositol 1,4,5-Trisphosphate Receptors; C085577:Ca2+-binding protein-1