Subunit
Unlike other Rab family members, does not interact with GDP dissociation inhibitors (GDIs), including ARHGDIA and ARHGDIB. Interacts with ZFYVE20.
Miscellaneous
The unusual Ser-67, instead of a conserved Gln in other family members, is the cause of low GTPase activity. As a result, the predominant nucleotide associated with the protein is GTP (By similarity).
Subcellular location
Cytoplasm
Only about 20-25% is recovered in the particulate fraction. With evidence from 2 publications.
Cytosol
Only about 20-25% is recovered in the particulate fraction. With evidence from 2 publications.
Membrane
Only about 20-25% is recovered in the particulate fraction. With evidence from 2 publications.