![[Feedback]](/icons/banner/feedbackACT.gif){kind=icon}
![[For Subscribers]](/icons/banner/subscriberACT.gif){kind=icon}
![[Archive]](/icons/banner/archiveACT.gif){kind=icon}
![[Search]](/icons/banner/searchACT.gif){kind=icon}
|
|
|
|
|
||
A more recent version of this article appeared on January 1, 2006
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Submitted on May 31, 2005
Revised on October 7, 2005
Accepted on October 14, 2005
Department of Biochemistry and Molecular Biology and Eppley Cancer Center, University of Nebraska Medical Center, Omaha, NE 68198-5870
Monitoring Editor: Jean Gruenberg
EHD1 enables membrane recycling by controlling the exit of internalized molecules from the endocytic recycling compartment (ERC) en route to the plasma membrane, similar to the role described for Rab11. However, no physical or functional connection between Rab11 and EHD-family proteins has been demonstrated yet, and the mode by which they coordinate their regulatory activity remains unknown. Here we demonstrate that EHD1 and EHD3 (the closest EHD1 paralog), bind to the Rab11-effector Rab11-FIP2 via EH-NPF interactions. The EHD/Rab11-FIP2 associations are affected by the ability of the EHD proteins to bind nucleotides, and Rab11-FIP2 is recruited to EHD-containing membranes. These results are consistent with a coordinated role for EHD1 and Rab11-FIP2 in regulating exit from the endocytic recycling compartment (ERC). However, since no function has been attributed to EHD3, the significance of its interaction with Rab11-FIP2 remained unclear. Surprisingly, loss of EHD3 expression prevented the delivery of internalized transferrin and early endosomal proteins to the ERC, an effect differing from that described upon EHD1 knock-down. Moreover, the subcellular localization of Rab11-FIP2 and endogenous Rab11 were altered upon EHD3 knock-down, with both proteins absent from the ERC and retained in the cell periphery. The results presented herein promote a coordinated role for EHD proteins and Rab11-FIP2 in mediating endocytic recycling, and provide evidence for the function of EHD3 in early endosome to ERC transport.
This article has been cited by other articles:
|
|
 |
|
  M. V. Chibalina, M. N. J. Seaman, C. C. Miller, J. Kendrick-Jones, and F. Buss Myosin VI and its interacting protein LMTK2 regulate tubule formation and transport to the endocytic recycling compartment J. Cell Sci., December 15, 2007; 120(24): 4278 - 4288. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 N. A. Ducharme, J. A. Williams, A. Oztan, G. Apodaca, L. A. Lapierre, and J. R. Goldenring Rab11-FIP2 regulates differentiable steps in transcytosis Am J Physiol Cell Physiol, September 1, 2007; 293(3): C1059 - C1072. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 J. T. Roland, A. K. Kenworthy, J. Peranen, S. Caplan, and J. R. Goldenring Myosin Vb Interacts with Rab8a on a Tubular Network Containing EHD1 and EHD3 Mol. Biol. Cell, August 1, 2007; 18(8): 2828 - 2837. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 N. Naslavsky, J. Rahajeng, S. Chenavas, P. L. Sorgen, and S. Caplan EHD1 and Eps15 Interact with Phosphatidylinositols via Their Eps15 Homology Domains J. Biol. Chem., June 1, 2007; 282(22): 16612 - 16622. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 B. X. Li, A. K. Satoh, and D. F. Ready Myosin V, Rab11, and dRip11 direct apical secretion and cellular morphogenesis in developing Drosophila photoreceptors J. Cell Biol., May 21, 2007; 177(4): 659 - 669. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
M. Jovic, N. Naslavsky, D. Rapaport, M. Horowitz, and S. Caplan EHD1 regulates beta1 integrin endosomal transport: effects on focal adhesions, cell spreading and migration J. Cell Sci., March 1, 2007; 120(5): 802 - 814. [Abstract] [Full Text] [PDF]
|
|
