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. 2012 Aug 9;7(8):e41466. doi: 10.1371/journal.pone.0041466

Figure 3. Distribution of separating distances between IV9-HLA-A2 proteins assembled on QD and Streptavidin scaffolds.

Figure 3

Fluorescence decay of AF594-IV9 peptide bound to HLA-A2 protein (donor) in the presence or absence of AF647-IV9-HLA-A2 protein (acceptor) displayed on the surface of QD(520) (A) or Streptavidin scaffold (B). Fitting the experimental data to the model (Eqs. 1–7) yielded satisfactory fit (χ2<1.2) allowing to evaluate distribution of separating distances between IV9-HLA-A2 molecules displayed on QD (C) or Streptavidin (D).