Fig. 3. SPR measurement of N-CEA affinity (KD) to Dr adhesins.
A) SPR binding curves of the interaction between N-CEA and DraE fimbriae in steady state. The resulting data were analyzed with BIAevaluation 3.0 software to globally fit data and derive the dissociation constants (KD). A fit of these data is shown. RU, relative units. RE, response difference. B) Bar chart showing a comparison of dissociation constants (KD) for different Dr adhesins.