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Science 15 May 1992:
Vol. 256. no. 5059, pp. 1021 - 1025
DOI: 10.1126/science.1589771

Articles

Science, Vol 256, Issue 5059, 1021-1025
Copyright © 1992 by American Association for the Advancement of Science


articles

Synaptotagmin: a calcium sensor on the synaptic vesicle surface

N Brose, AG Petrenko, TC Sudhof, and R Jahn

Department of Neurochemistry, Max-Planck-Institute for Psychiatry, Martinsried, Germany.

Neurons release neurotransmitters by calcium-dependent exocytosis of synaptic vesicles. However, the molecular steps transducing the calcium signal into membrane fusion are still an enigma. It is reported here that synaptotagmin, a highly conserved synaptic vesicle protein, binds calcium at physiological concentrations in a complex with negatively charged phospholipids. This binding is specific for calcium and involves the cytoplasmic domain of synaptotagmin. Calcium binding is dependent on the intact oligomeric structure of synaptotagmin (it is abolished by proteolytic cleavage at a single site). These results suggest that synaptotagmin acts as a cooperative calcium receptor in exocytosis.


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C2-domains, Structure and Function of a Universal Ca2+-binding Domain.
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Stabilization of the Receptor Protein Tyrosine Phosphatase-Like Protein ICA512 in GH4C1 Cells upon Treatment with Estradiol, Insulin, and Epidermal Growth Factor.
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Direct Interaction of a Ca2+-binding Loop of Synaptotagmin with Lipid Bilayers.
E. R. Chapman and A. F. Davis (1998)
J. Biol. Chem. 273, 13995-14001
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Functional Analysis of the C2A Domain of Synaptotagmin 1: Implications for Calcium-Regulated Secretion.
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The C2 Domain of the Ubiquitin Protein Ligase Nedd4 Mediates Ca2+-dependent Plasma Membrane Localization.
P. J. Plant, H. Yeger, O. Staub, P. Howard, and D. Rotin (1997)
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Functional Importance of Synaptobrevin and SNAP-25 during Exocytosis of Histamine by Rat Gastric Enterochromaffin-Like Cells.
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Ca2+/Calmodulin Causes Rab3A to Dissociate from Synaptic Membranes.
J. B. Park, C. C. Farnsworth, and J. A. Glomset (1997)
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Regulated Secretion in Platelets: Identification of Elements of the Platelet Exocytosis Machinery.
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A Novel Function for the Second C2 Domain of Synaptotagmin.
E. R. Chapman, S. An, J. M. Edwardson, and R. Jahn (1996)
J. Biol. Chem. 271, 5844-5849
   Abstract »    Full Text »    PDF »
Distinct Ca[IMAGE]-dependent Properties of the First and Second C(2)-domains of Synaptotagmin I.
S. Sugita, Y. Hata, and T. C. Südhof (1996)
J. Biol. Chem. 271, 1262-1265
   Abstract »    Full Text »    PDF »
Distinct Ca[IMAGE] and Sr[IMAGE] Binding Properties of Synaptotagmins.
C. Li, B. A. Davletov, and T. C. Südhof (1995)
J. Biol. Chem. 270, 24898-24902
   Abstract »    Full Text »    PDF »
Mammalian Homologues of Caenorhabditis elegans unc-13 Gene Define Novel Family of C(2)-domain Proteins.
N. Brose, K. Hofmann, Y. Hata, and T. C. Südhof (1995)
J. Biol. Chem. 270, 25273-25280
   Abstract »    Full Text »    PDF »
C2 Region-derived Peptides Inhibit Translocation and Function of beta Protein Kinase C in Vivo.
D. Ron, J. Luo, and D. Mochly-Rosen (1995)
J. Biol. Chem. 270, 24180-24187
   Abstract »    Full Text »    PDF »
Ca[IMAGE] Regulates the Interaction between Synaptotagmin and Syntaxin 1.
E. R. Chapman, P. I. Hanson, S. An, and R. Jahn (1995)
J. Biol. Chem. 270, 23667-23671
   Abstract »    Full Text »    PDF »
The Biochemistry of Neurotransmitter Secretion.
S. M. Bajjalieh and R. H. Scheller (1995)
J. Biol. Chem. 270, 1971-1974
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Inhibition of regulated catecholamine secretion from PC12 cells by the Ca2+/calmodulin kinase II inhibitor KN-62.
E. Schweitzer, M. Sanderson, and C. Wasterlain (1995)
J. Cell Sci. 108, 2619-2628
   Abstract »    PDF »



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