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. 2013 Jun 19;288(32):23597–23606. doi: 10.1074/jbc.M113.480467

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© 2013 by The American Society for Biochemistry and Molecular Biology, Inc.

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FIGURE 2. — Equilibrium binding of VLRB.aGPA.23 to glycoconjugates. A, SPR sensograms for the interaction of VLRB.aGPA.23 (267.4, 133.7, 66.8, 33.4, 26.7, 16.7, 8.3 μm) with immobilized TFα-PAA (578 resonance units (RU)) are shown. K_b (1.5 × 10⁴ m⁻¹) was calculated from a Scatchard plot (inset) after correction for nonspecific binding by measuring the concentration of free reactants and complex at equilibrium. B, shown is the interaction of VLRB.aGPA.23 (267.4, 133.7, 66.8, 33.4, 26.7, 16.7, 8.3 μm) with immobilized aGPA (215 RU); K_b = 0.56 × 10⁴ m⁻¹. C, shown is the interaction of VLRB.aGPA.23 with immobilized GPA (217 RU).