Summary

Name RAB5A
Full Name Ras-related protein Rab-5A
Synonyms RAB5A_HUMAN | RAB5
Primary ID P20339
Links - -
Type protein
Relations 14
Pathways Macropinocytosis
Function Small GTPase which cycles between active GTP-bound and inactive GDP-bound states. In its active state, binds to a variety of effector proteins to regulate cellular responses such as of intracellular membrane trafficking, from the formation of transport vesicles to their fusion with membranes. Active GTP-bound form is able to recruit to membranes different sets of downstream effectors directly responsible for vesicle formation, movement, tethering and fusion. RAB5A is required for the fusion of plasma membranes and early endosomes (PubMed:10818110, PubMed:14617813, PubMed:16410077, PubMed:15378032). Contributes to the regulation of filopodia extension (PubMed:14978216). Required for the exosomal release of SDCBP, CD63, PDCD6IP and syndecan (PubMed:22660413). Regulates maturation of apoptotic cell-containing phagosomes, probably downstream of DYN2 and PIK3C3 (By similarity).

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Relations

Regulator Mechanism target score
+ up-regulates activity img/direct-activation.png binding PIK3R4 0.434
Publications: 1 Organism: Mus Musculus
+ up-regulates activity img/direct-activation.png binding COMMD5 0.2
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png lipidation RAB5A 0.468
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png lipidation RAB5A 0.607
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png binding RAB5A 0.429
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png guanine nucleotide exchange factor RAB5A 0.921
Publications: 1 Organism: Mus Musculus
+ form complex img/form-complex.png binding Early Endosome 0.535
Publications: 1 Organism: Homo Sapiens
+ up-regulates img/direct-activation.png binding RAB5A 0.927
Publications: 1 Organism: Homo Sapiens
+ up-regulates img/direct-activation.png binding RAB5A 0.921
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png binding INPP5B 0.46
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png binding OCRL 0.683
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png binding RAB5A 0.725
Publications: 1 Organism: Homo Sapiens
+ down-regulates activity img/direct_inhibition.png binding RAB7A 0.684
Publications: 1 Organism: Homo Sapiens
+ down-regulates activity img/direct_inhibition.png binding RAB5A 0.27
Publications: 1 Organism: Drosophila Melanogaster