Fig. 1.
The nine F8-4-1BBL fusion proteins designed and tested in this study. (A) schematic depiction of an antibody in the IgG format and of human 4-1BBL, a transmembrane protein which forms a noncovalent homotrimer (57). (B) Schematic depiction of the fusion proteins featuring murine 4-1BBL and size exclusion chromatograms.
