Schematic representation of NTT p110α constructs. In the current study, the following tags were added to the N-terminus of p110α: epitope tags including Flag, His and VSV; a myristylation signal, myr, (N-M(G)QSLTT H-C); a mutated myristylation signal, mut-myr, (N-M(A)QSLTT H-C); and two random sequences, random6: N-QGSGFS-C; random10: N-QVAHGVVLLR-C.