Rabenosyn-5 connects Rab5 to VPS-45

Stable Identifier
R-HSA-1011600
Type
Reaction
Species
Homo sapiens
Compartment
Locations in the PathwayBrowser
Summation

The small GTPase Rab5 regulates membrane traffic into and between early endosomes by specifically recruiting cytosolic effector proteins to their site of action on early endosomal membranes. Rab5 occupies a restricted membrane subdomain on endosomes that has distinct biochemical features when compared with neighboring subcompartments (Sonnichsen et al. 2000). Rab5 is believed to form this subdomain by recruiting the specific PI3 kinase VPS-45, causing localized production of PI-3-phosphate (PI-3P) (Christoforidis et al. 1999). Rabenosyn-5 is a Rab5 effector, recruited in a phosphatidylinositol-3-kinase dependent fashion to early endosomes where it serves as a molecular link between VPS-45 and Rab5.

Literature References
Participants
Participant Of
Orthologous Events