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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. The rough (or granular) endoplasmic reticulum (ER) has ribosomes adhering to the outer surface; the ribosomes are the site of translation of the mRNA for those proteins which are either to be retained within the cisternae (ER-resident proteins), the proteins of the lysosomes, or the proteins destined for export from the cell. Glycoproteins undergo their initial glycosylation within the cisternae. A transmembrane heterodimeric protein located in the membrane of the rough endoplasmic reticulum. Both subunits contain GTPase domains with which signal recognition particle interacts. In the presence of GTP and SRP receptor, SRP is released from the ribosome-nascent chain complex. 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 lipid bilayer surrounding the rough endoplasmic reticulum. The lipid bilayer surrounding an organelle. The continuous network of membranes encompassing the outer nuclear membrane and the endoplasmic reticulum. The lipid bilayer surrounding the endoplasmic reticulum. Any constituent part of a membrane, a double layer of lipid molecules that encloses all cells, and, in eukaryotes, many organelles; may be a single or double lipid bilayer; also includes associated proteins. A protein complex that constitutes a specific site of protein translocation across the endoplasmic reticulum, which involves the signal recognition particle receptor. The complex contains a core heterotrimer of alpha, beta and gamma subunits, and may contain additional proteins. An endoplasmic reticulum membrane-associated complex involved in the translocation of proteins that are targeted to the ER. In yeast, this complex consists of two subcomplexes, namely, the Sec61 complex and the Sec62/Sec63 complex.

View Gene Ontology (GO) Term

GO TERM SUMMARY
Name: rough endoplasmic reticulum membrane
Acc: GO:0030867
Aspect: Cellular Component
Desc: The lipid bilayer surrounding the rough endoplasmic reticulum.
Synonyms:
  • rough ER membrane
  • RER membrane
Proteins in PDR annotated with:
   This term: 10 [Search]
   Term or descendants: 66 [Search]


[geneontology.org]
INTERACTIVE GO GRAPH

GO:0030867 - rough endoplasmic reticulum membrane (interactive image map)
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