Mouse anti transferrin antibody, clone HTF-14 recognizes the N-terminal domain of human transferrin and has been shown to block binding of transferrin to the transferrin receptor (CD71). Clone HTF-14 is not able to recognize receptor bound transferrin. Clone HTF-14 recognizes a conformational epitope in a loop of the N lobe of transferrin involving the critical Lys-144 residue, also essential for binding of the N lobe to the transferrin receptor (Mason et al.2009)
Transferrin is a 77 kDa plasma protein synthesized by the liver involved with the transport of iron. Each transferrin molecule has two domains, both with facility to carry 2 ferric ions. The iron/transferrin complex is essential for hemoglobin synthesis and certain types of cell division.