827
Views
13
CrossRef citations to date
0
Altmetric
Review

EHDs meet the retromer

Complex regulation of retrograde transport

, &
Pages 161-165 | Published online: 30 Sep 2012

Figures & data

Figure 1. Retrograde transport and EHD proteins. Retrograde transport of endocytic membranes occurs from early endosomes, late endosomes and/or recycling endosomes to the TGN. EHD1 and EHD3 interact with the retromer complex and regulate retromer-mediated membrane transport. For simplicity, only EHD proteins and their interaction partners are shown.

Figure 1. Retrograde transport and EHD proteins. Retrograde transport of endocytic membranes occurs from early endosomes, late endosomes and/or recycling endosomes to the TGN. EHD1 and EHD3 interact with the retromer complex and regulate retromer-mediated membrane transport. For simplicity, only EHD proteins and their interaction partners are shown.

Figure 2. Schematic diagram of Rank-5 domain architecture. Rank-5 contains a C-terminal BTB domain and an N-terminal FYVE domain, with 21 consecutive ankyrin repeats in between. The NPFED motif localizes to the fifth ankyrin repeat.

Figure 2. Schematic diagram of Rank-5 domain architecture. Rank-5 contains a C-terminal BTB domain and an N-terminal FYVE domain, with 21 consecutive ankyrin repeats in between. The NPFED motif localizes to the fifth ankyrin repeat.

Figure 3. Proposed model for Rank-5 function. Rank-5 is required for the formation of macropinosomes and plays a role in homotypic early-endosome fusion. Through binding to EHD1 and MICAL-L1, Rank-5 is recruited to the retromer and influences retromer-mediated retrograde transport. Furthermore, depletion of either Rank-5 or EHD1 affects VSV-G secretion, possibly through its effect on the homeostasis of the TGN. EE, early endosomes.

Figure 3. Proposed model for Rank-5 function. Rank-5 is required for the formation of macropinosomes and plays a role in homotypic early-endosome fusion. Through binding to EHD1 and MICAL-L1, Rank-5 is recruited to the retromer and influences retromer-mediated retrograde transport. Furthermore, depletion of either Rank-5 or EHD1 affects VSV-G secretion, possibly through its effect on the homeostasis of the TGN. EE, early endosomes.