Membrane fusion of the phagosome and lysosome is regulated by the Rab5 protein, a G protein that allows the exchange of material between these two organelles but prevents complete fusion of their membranes.
Fusi membran fagosom dan lisosom diatur oleh protein Rab5, suatu protein G yang memungkinkan pertukaran bahan antara dua organel ini tetapi mencegah fusi lengkap dari membran mereka.