title: Rab7: role of its protein interaction cascades in endo-lysosomal traffic.
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.
authors.affiliation: Institute for Biomedical Research, Xiamen University, Xiamen, Fujian, China 361005.
authors.forename: Tuanlao
authors.initials: T
authors.lastname: Wang
authors.forename: Zhang
authors.initials: Z
authors.lastname: Ming
authors.forename: Wu
authors.initials: W
authors.lastname: Xiaochun
authors.forename: Wanjin
authors.initials: W
authors.lastname: Hong
mesh_terms: D011992:Endosomes / Q000378:metabolism*; D020690:GTPase-Activating Proteins / Q000378:metabolism; D020662:Guanine Nucleotide Exchange Factors / Q000378:metabolism; D006801:Humans; D008247:Lysosomes / Q000378:metabolism*; D008870:Microtubules / Q000378:metabolism; D015398:Signal Transduction; D033921:Vesicular Transport Proteins / Q000378:metabolism; D020691:rab GTP-Binding Proteins / Q000502:physiology*; D000090802:rab7 GTP-Binding Proteins
chemical_list: D020690:GTPase-Activating Proteins; D020662:Guanine Nucleotide Exchange Factors; D033921:Vesicular Transport Proteins; D000090802:rab7 GTP-Binding Proteins; C000716463:rab7 GTP-binding proteins, human; D020691:rab GTP-Binding Proteins