Interaction of fibrin(ogen) fragments with the VLDLR detected by SPR. Fibrin(ogen) fragments, D-D, E1, E3, αC fragment, or the (D-D)E1 complex, all at 1μM, were added to immobilized sVLDLR, and their association/dissociation was monitored in real time. The curves are representative of 2 independent experiments performed in HBS-P buffer containing 1mM CaCl2.