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Endoplasmic reticulum calcium signaling in nerve cells Biol. Res.
VERKHRATSKY,ALEXEI.
The endoplasmic reticulum (ER) is an important organelle involved in various types of signaling in nerve cells. The ER serves as a dynamic Ca2+ pool being thus involved in rapid signaling events associated with cell stimulation by either electrical (action potential) or chemical (neurotransmitters) signals. This function is supported by Ca2+ release channels (InsP3 and ryanodine receptors) and SERCA Ca2+ pumps residing in the endomembrane. In addition the ER provides a specific environment for the posttranslational protein processing and transport of various molecules towards their final destination. In parallel, the ER acts as a "calcium tunnel," which facilitates Ca2+ movements within the cell by avoiding cytoplasmic routes. Finally the ER appears as a...
Tipo: Journal article Palavras-chave: Calcium signaling; Endoplasmic reticulum; Ryanodine receptors; InsP3 receptors.
Ano: 2004 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602004000400027
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