exosome

English dictionary entry

Meanings

noun
  1. An intracellular macromolecular protein complex involved in RNA degradation.
  2. An extracellular vesicle released from the endosomal compartment of eukaryotic cells, responsible for the selective removal of plasma membrane protein.

Pronunciation

ĕksʹ-ō-sōm' /ˈɛks.oʊˌsoʊm/

Word forms

exosome exosomes

Etymology

From exo- + -some.

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