Microsomes

Artifactual vesicles formed from the endoplasmic reticulum when cells are disrupted. They are isolated by differential centrifugation and are composed of three structural features: rough vesicles, smooth vesicles, and ribosomes. Numerous enzyme activities are associated with the microsomal fraction. (Glick, Glossary of Biochemistry and Molecular Biology, 1990; from Rieger et al., Glossary of Genetics: Classical and Molecular, 5th ed)

Year introduced: 1965(1964)

Date introduced: January 1, 1999

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Tree Number(s): A11.284.835.540

MeSH Unique ID: D008861

Entry Terms:

• Microsome

All MeSH Categories
Anatomy Category
Cells
Cellular Structures
Subcellular Fractions
Microsomes
Microsomes, Liver