Proteins of the large Rab GTPase family (see RAB1A; MIM 179508) have regulatory roles in the formation, targeting, and fusion of intracellular transport vesicles. RAB11FIP4 is one of many proteins that interact with and regulate Rab GTPases (Hales et al., 2001 [PubMed 11495908]).[supplied by OMIM, Apr 2008]
Function:
Acts as a regulator of endocytic traffic by participating in membrane delivery. Required for the abcission step in cytokinesis, possibly by acting as an 'address tag' delivering recycling endosome membranes to the cleavage furrow during late cytokinesis. In case of infection by HCMV (human cytomegalovirus), may participate in egress of the virus out of nucleus; this function is independent of ARF6.
Subunit:
Homodimer. Forms a complex with Rab11 (RAB11A or RAB11B) and ARF6. Interacts with RAB11A; the interaction is direct. Forms a heterooligomeric complex with RAB11FIP2, RAB11FIP3 and RAB11FIP5. Interacts with HCMV (human cytomegalovirus) gM/UL100. Interacts with ECM29.
Tissue Specificity:
Recycling endosome membrane; Peripheral membrane protein. Note: Colocalizes with RAB11A in the endocytic recycling compartment (ERC).
SWISS:
Q86YS3
Gene ID:
8488
Database links:
Entrez Gene: 8488 Human
Entrez Gene: 268451 Mouse
Omim: 611999 Human
SwissProt: Q86YS3 Human
SwissProt: Q8BQP8 Mouse
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