Human transferrin detected by the mouse monoclonal antibody HTF-14.1. hTransferrin; 5 g/well (red. con.)2. hTransferrin; 3 g/well (red. con.)3. hTransferrin; 1 g/well (red. con.) M Low Range marker (Bio-Rad)4. hTransferrin; 1 g/well (non-red. con.)5. hTran