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Sensorgrams of the interaction of Lg-ECDs with gp120. (A) Lg-ECDWT; concentrations used are 5, 10, 50, 100, 200, 500, 750, and 1000 nM. (B) Lg-ECDF241L; black lines correspond to concentrations of 62.5, 250, 500, and 1000 nM and dotted lines correspond to additional concentrations used, 2, 4, and 6.6 μM.
