Fig. 4.
Construction of the PB-GDNF plasmid. A: M, DL2000; 1-9, monoclonal colonies; 10, H2O; B: M, DL5000; 1, PB 513B-I plasmid; 2, PB-GDNF plasmid; 3, H2O; 1-5, monoclonal colonies.
Construction of the PB-GDNF plasmid. A: M, DL2000; 1-9, monoclonal colonies; 10, H2O; B: M, DL5000; 1, PB 513B-I plasmid; 2, PB-GDNF plasmid; 3, H2O; 1-5, monoclonal colonies.