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. 2019 Feb 28;14(2):e0204194. doi: 10.1371/journal.pone.0204194

Table 1. Comparison of the AV-BcO association rate constants (kon) obtained by fluorescence change, F¯(t), and corrected fluorescence anisotropy, rF¯(t).

kon AV-BcO F¯(t) × 10−6 M-1s-1 r¯F(t) × 10−6 M-1s-1
Temp. 260 nM 520 nM 1040 nM 260 nM 520 nM 1040 nM
25°C 9.5 ± 0.1 9.5 ± 0.3 9.7 ± 0.3 9.5 ± 0.1 9.5 ± 0.1 9.4 ± 0.2
20°C 5.7 ± 0.1 5.9 ± 0.3 6.0 ± 0.1 5.9 ± 0.1 5.8 ± 0.1 6.1 ± 0.1
15°C 4.1 ± 0.1 4.0 ± 0.1 3.9 ± 0.2 4.0 ± 0.1 3.8 ± 0.1 4.0 ± 0.2
10°C 2.4 ± 0.1 2.6 ± 0.2 2.5 ± 0.2 2.7 ± 0.1 2.7 ± 0.1 2.7 ± 0.1

The association reactions were acquired with BcO (20 nM) binding to AV at several temperatures, protein concentrations and pH 8.The F¯(t) and rF¯(t) signals were equivalent as they tracked in the errors the association process of dye-labeled B7 binding to the proteins under pseudo-first order conditions.