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Sarcoplasmic reticulum


The sarcoplasmic reticulum (SR) is a highly specialized form of the smooth endoplasmic reticulum which is dedicated to the regulation of intracellular calcium homeostasis. The SR can be subdivided in at least two well-characterized regions: the terminal cisternae, where the calcium ions are released, and the longitudinal tubules specialized in the uptake of the calcium ions.


› Cellular component


Sarcoplasmic reticulum

Gene Ontology


sarcoplasmic reticulum [ GO:0016529 ]
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