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Any constituent part of the endoplasmic reticulum, the irregular network of unit membranes, visible only by electron microscopy, that occurs in the cytoplasm of many eukaryotic cells. The membranes form a complex meshwork of tubular channels, which are often expanded into slitlike cavities called cisternae. Any constituent part of the cytoplasm, all of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures. The cytoplasm of a muscle cell; includes the sarcoplasmic reticulum. A fine reticular network of membrane-limited elements that pervades the sarcoplasm of a muscle cell; continuous over large portions of the cell and with the nuclear envelope; that part of the endoplasmic reticulum specialized for calcium release, uptake and storage. An elaborate tubulolamellar membrane system that underlies the postsynaptic cell membrane. The irregular network of unit membranes, visible only by electron microscopy, that occurs in the cytoplasm of many eukaryotic cells. The membranes form a complex meshwork of tubular channels, which are often expanded into slitlike cavities called cisternae. The ER takes two forms, rough (or granular), with ribosomes adhering to the outer surface, and smooth (with no ribosomes attached). The portion of the free sarcoplasmic reticulum consisting of longitudinal tubules that connect terminal cisternae. The region between the inner and outer lipid bilayers of the longitudinal sarcoplasmic reticulum envelope. The longitudinal sarcoplasmic reticulum lumen is continuous with the lumen contained within the terminal cisternae. A constituent part of an intracellular organelle, an organized structure of distinctive morphology and function, occurring within the cell. Includes constituent parts of the nucleus, mitochondria, plastids, vacuoles, vesicles, ribosomes and the cytoskeleton but excludes the plasma membrane.

View Gene Ontology (GO) Term

GO TERM SUMMARY
Name: longitudinal sarcoplasmic reticulum
Acc: GO:0014801
Aspect: Cellular Component
Desc: The portion of the free sarcoplasmic reticulum consisting of longitudinal tubules that connect terminal cisternae.
Proteins in PDR annotated with:
   This term: 0
   Term or descendants: 0


[geneontology.org]
INTERACTIVE GO GRAPH

GO:0014801 - longitudinal sarcoplasmic reticulum (interactive image map)
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