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. 2014 Nov 20;42(22):13861–13872. doi: 10.1093/nar/gku1208

Table 3. Binding affinities of Mtr4 and mutants on a poly(A) substrate as determined by fluorescence anisotropya.

Kd (μM)
Mtr4WT 2.8 ± 0.9
Mtr4archless 4.5 ± 0.6
Mtr4R1030A 2.6 ± 1.0
Mtr4E1033A 2.0 ± 0.6
Mtr4R1030A-archless > 10
Mtr4E1033A-archless 4.8 ± 0.6

Binding affinities > 10 μM were not quantified by anisotropy. Data presented here represent averages from three independent experiments; error bars represent SD.

aMethods and equations used to derive kinetic constants are found in the ‘Materials and Methods’ section.