Abstract
The 'bell-shaped' curve relating cytosolic Ca(2+) concentration to IP(3) receptor activation is considered important in the generation of the complex Ca(2+) signals seen inside many cells. But recent findings suggest this bimodal relationship is not always evident and may not apply to some IP(3) receptor isoforms.
MeSH terms
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Animals
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Calcium / metabolism*
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Calcium / pharmacology
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Calcium Channels / chemistry
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Calcium Channels / metabolism*
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Calcium Signaling / physiology*
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Cytosol / metabolism*
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Inositol 1,4,5-Trisphosphate / metabolism
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Inositol 1,4,5-Trisphosphate Receptors
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Protein Isoforms / antagonists & inhibitors
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Protein Isoforms / metabolism
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Receptors, Cytoplasmic and Nuclear / antagonists & inhibitors
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Receptors, Cytoplasmic and Nuclear / chemistry
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Receptors, Cytoplasmic and Nuclear / metabolism*
Substances
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Calcium Channels
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Inositol 1,4,5-Trisphosphate Receptors
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Protein Isoforms
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Receptors, Cytoplasmic and Nuclear
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Inositol 1,4,5-Trisphosphate
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Calcium