Class: Smooth_Endoplasmic_Reticulum


Super Classes



definitionThe smooth ER has no ribosomes attached to it. The smooth is the recipient of the proteins synthesized in the rough ER. Those proteins to be exported are passed to the Golgi complex, the resident proteins are returned to the rough ER and the lysosomal proteins after phosphorylation of their mannose residues are passed to the lysosomes. Glycosylation of the glycoproteins also continues. The smooth ER is the site of synthesis of lipids, including the phospholipids. The membranes of the smooth ER also contain enzymes that catalyze a series of reactions to detoxify both lipid-soluble drugs and harmful products of metabolism. Large quantities of certain compounds such as phenobarbital cause an increase in the amount of the smooth ER (Gene Ontology).


Class Description/Definition (Necessary Conditions)

Astrocyte, Dendritic_Spine, Hypolemmal_Cisternae, Mushroom, Ventricular_Epithelial_Cell
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