Figure 5

The SDS-PAGE gel of the VHH-B11 humanized antibodies. The SDS–PAGE gel of multiple VHH-B11 humanized antibodies expressed by P. pastoris X33. M1/M3: the protein markers (Fermentas, USA). Lane 1: Wild type VHH-B11; lane 2: VHH-Z1; lane 3: VHH-Z2; lane 4: VHH-Z3; lane 5: Hu-B11; lane 6: VHH-Z4; lane 7: VHH-Z5.