Assertion: antibody's domain | /r/CapableOf | display improved affinity
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text: Both variable domains displayed improved affinity (K D of 7.6 ± 0.4 nM for N2.12 and 13.2 ± 4.8 nM for N2.17 relative to 57.6 ± 9.0 nM for wild type; Figure 5A).