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Cell Signal. 2011 Mar;23(3):516-21. doi: 10.1016/j.cellsig.2010.09.012. Epub 2010 Sep 21.

Rab7: role of its protein interaction cascades in endo-lysosomal traffic.

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1
Institute for Biomedical Research, Xiamen University, Xiamen, Fujian, China 361005.

Abstract

Protein-protein interaction cascades are crucial for cellular signaling pathways and cell morphogenesis. Membrane traffic along the secretory and endocytic pathways is similarly governed by regulated protein-protein interactions of diverse machineries, which are inter-regulated, assembled and disassembled sequentially to drive membrane budding, vesicle transport, membrane fission and fusion. Rab7, the key regulator in endo-lysosomal trafficking investigated extensively in the past decades, is emerging to govern early-to-late endosomal maturation, microtubule minus-end as well as plus-end directed endosomal migration and positioning, and endosome-lysosome transport through different protein-protein interaction cascades. We summarize here the key protein interaction cascades of Rab7 by focusing on endo-lysosomal trafficking regulated by its interaction with HOPs, RILP, ORP1L, FYCO1 and Mon1/Sand1-CCZ1 complex.

PMID:
20851765
DOI:
10.1016/j.cellsig.2010.09.012
[Indexed for MEDLINE]
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