In the Golgi apparatus, PtdIns4P binds to the GTP-binding protein ARF and to effector proteins, including four-phosphate-adaptor protein 1 and 2 (FAPP1 and FAPP2).
U Goldžijevom aparatu, PtdIns4P vezuje GTP-vezujući protein ARF i efektorske proteine, uključujući 4-fosfat adapterske proteine 1 i 2 (FAPP1 i FAPP2).