Ras-related protein Rab-14 (RAB14)

Ras-related protein Rab-14 (RAB14) is a small GTPase of the Ras superfamily that plays a pivotal role in regulating intracellular membrane trafficking, particularly in the transport of vesicles between the Golgi complex and endosomes[3][6][9]. It serves as a molecular switch by cycling between GTP-bound (active) and GDP-bound (inactive) states, recruiting downstream effector proteins to membranes and orchestrating processes such as vesicle formation, movement, tethering, and fusion[3][6][7]. RAB14 is crucial during early embryonic development for processes such as basement membrane formation and lineage specification, and modulates the trafficking of fibroblast growth factor receptor (FGFR) and ADAM10-containing vesicles, regulating cell-cell adhesion[1][3]. It interacts with various effector proteins including Rab coupling protein (RCP) and participates in processes such as neurite outgrowth[2][3]. RAB14 has roles in disease pathology, including certain cancers, inherited syndromes (Warburg Micro syndrome 1, cystic fibrosis), and viral infections (serving as a host factor supporting viral assembly and replication)[3][4]. As an essential membrane trafficking enzyme, direct therapeutic targeting poses safety concerns due to the risk of widespread cellular dysfunction[3][6].

Other names

RAB14FBPRAB-14F protein-binding protein 1member RAS oncogene familysmall GTP binding protein RAB14

Modulation of vesicle trafficking; Regulation of transport of proteins (e.g., FGFR-containing vesicles); Regulation of endocytic transport and cell adhesion molecules (e.g., ADAM10, N-cadherin/CDH2)