FEATURES

FAMILY

DESCRIPTION

Also known as RB39B_HUMAN, RAB39B. Small GTPases Rab involved in autophagy (PubMed:27103069). The small GTPases Rab are key regulators of intracellular membrane trafficking, from the formation of transport vesicles to their fusion with membranes. Rabs cycle between an inactive GDP-bound form and an active GTP-bound form that is able to recruit to membranes different sets of downstream effectors directly responsible for vesicle formation, movement, tethering and fusion (PubMed:27103069). May regulate the homeostasis of SNCA/alpha-synuclein. Together with PICK1 proposed to ensure selectively GRIA2 exit from the endoplasmic reticulum to the Golgi and to regulate AMPAR compostion at the post-synapses and thus synaptic transmission (By similarity). Interacts (in GTP-bound form) with PICK1 (via PDZ domain); a PICK1 homodimer may allow simultaneous association of RAB39B and GRIA2 to PICK1 which is involved in GRIA2 trafficking. Interacts with isoform c of RASSF1; the interaction is strong (By similarity). Interacts with isoform a of RASSF1; the interaction is weak (By similarity).

EXTERNAL LINKS

RAB39B

Ras-related protein Rab-39B

RAB39B

Molecular Synopsis