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. 2002 Aug;3(2):283-9.
doi: 10.1016/s1534-5807(02)00219-8.

Endosome-associated complex, ESCRT-II, recruits transport machinery for protein sorting at the multivesicular body

Markus Babst  1 , David J Katzmann, William B Snyder, Beverly Wendland, Scott D Emr
Affiliations
Free article

Endosome-associated complex, ESCRT-II, recruits transport machinery for protein sorting at the multivesicular body

Markus Babst et al. Dev Cell. 2002 Aug.
Free article

Abstract

Sorting of ubiquitinated endosomal membrane proteins into the MVB pathway is executed by the class E Vps protein complexes ESCRT-I, -II, and -III, and the AAA-type ATPase Vps4. This study characterizes ESCRT-II, a soluble approximately 155 kDa protein complex formed by the class E Vps proteins Vps22, Vps25, and Vps36. This protein complex transiently associates with the endosomal membrane and thereby initiates the formation of ESCRT-III, a membrane-associated protein complex that functions immediately downstream of ESCRT-II during sorting of MVB cargo. ESCRT-II in turn functions downstream of ESCRT-I, a protein complex that binds to ubiquitinated endosomal cargo. We propose that the ESCRT complexes perform a coordinated cascade of events to select and sort MVB cargoes for delivery to the lumen of the vacuole/lysosome.

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