rough endoplasmic reticulum

id: GO:0005791
name: rough endoplasmic reticulum
namespace: cellular_component
type: go
obsolete: False

Description: 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.

Parent Functions