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The Escrt Complexes: Structure and Mechanism of a Membrane-Trafficking Network

Authors
  • James H. Hurley
  • Scott D. Emr
Publication Date
Jan 01, 2006
Source
PMC
Keywords
Disciplines
  • Biology
  • Medicine
License
Unknown

Abstract

The ESCRT complexes and associated proteins comprise a major pathway for the lysosomal degradation of transmembrane proteins, and are critical for receptor downregulation, budding of the HIV virus, and other normal and pathological cell processes. The ESCRT system is conserved from yeast to man. The ESCRT complexes form a network that recruits monoubiquitinated proteins and drives their internalization into lumenal vesicles within a type of endosome known as a multivesicular body. The structures and interactions of many of the components have been determined over the past three years, revealing mechanisms for membrane and cargo recruitment and for complex assembly.

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