inositol 1,4,5-trisphosphate ( ins ( 1,4,5 ) p3 ) has recently been shown to mobilize ca2+ from intracellular stores , referable to endoplasmic reticulum , in a variety of cell types ( see ref . 8 for review ) , including smooth muscle cells of the porcine coronary artery and canine cardiac muscle cells .
C0014239
endoplasmic reticulum
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cells