Abstract
Store-operated calcium entry is a process by which the depletion of calcium from the endoplasmic reticulum activates calcium influx across the plasma membrane. In the past few years, the major players in this pathway have been identified. STIM1 and STIM2 function as calcium sensors in the endoplasmic reticulum and can interact with and activate plasma membrane channels comprised of Orai1, Orai2, or Orai3 subunits. This review discusses recent advances in our understanding of this widespread signaling mechanism as well as the mechanisms by which a number of interesting pharmacological agents modify it.
Publication types
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Research Support, N.I.H., Intramural
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Review
MeSH terms
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Animals
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Calcium / metabolism*
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Calcium Channels / metabolism*
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Cell Adhesion Molecules / metabolism
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Endoplasmic Reticulum / chemistry*
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Endoplasmic Reticulum / metabolism*
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Humans
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Membrane Glycoproteins / metabolism
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Membrane Proteins / metabolism
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Metabolic Networks and Pathways / genetics
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Mice
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Models, Biological
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Neoplasm Proteins / metabolism
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ORAI1 Protein
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ORAI2 Protein
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Stromal Interaction Molecule 1
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Stromal Interaction Molecule 2
Substances
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Calcium Channels
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Cell Adhesion Molecules
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Membrane Glycoproteins
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Membrane Proteins
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Neoplasm Proteins
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ORAI1 Protein
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ORAI1 protein, human
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ORAI2 Protein
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ORAI2 protein, human
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Orai1 protein, mouse
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Orai2 protein, mouse
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Orai3 protein, human
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Orai3 protein, mouse
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STIM1 protein, human
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STIM2 protein, human
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Stim1 protein, mouse
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Stim2 protein, mouse
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Stromal Interaction Molecule 1
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Stromal Interaction Molecule 2
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Calcium