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Interactions of untagged (UT) YsaL with (A) YsaN-His (B) YsaNflr-His (C) YsaN Δ (1–5) -His (D) YsaN Δ (411–430) -His and (E) YsaN Δ (426–430)-His. Untagged YsaL was used as an analyte in the concentration 5 nM, 10 nM, 20 nM and 50 nM.
