Fig. 6.
Adhesion of αvβ3 mutants to immobilized fibrinogen.
WT or mutant αv construct was transiently cotransfected with WT β3 construct into 293 cells. In WT β3 cells (⋄), only WT β3 construct was transfected into cells. WT (○) or mutant αvβ3-transfected cells were incubated for 60 minutes at 37°C with immobilized fibrinogen at serial concentrations. After washing with PBS, the adherent cells were quantified with a colorimetric reaction using endogenous cellular acid phosphatase activity. ▵, Phe177Ala; ✙, Tyr178Ala; ▿, Trp179Ala; ■, untransfected cells. Data represent the mean ± SE of triplicate measures of optical density at 415 nm.