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. 2004 Feb 6;101(7):1828–1833. doi: 10.1073/pnas.0306417101

Table 1. Equilibrium dialysis of WSK-3 and AgTx2-DNP.

Experiment [Tox] bound, μM Stoichiometry
WSK-3mon (40 μM) + Tox (10 μM) 9.0 [WSK-3]/[Tox]bound = 4.4
WSK-3mon (40 μM) + Tox (20 μM) 9.7 [WSK-3]/[Tox]bound = 4.1
BSA (20 μM) + Tox (44 μM) 0
CA (47 μM) + Tox (23 μM) 0

Initially, WSK-3 and AgTx2-DNP (Tox) are on side a, whereas buffer is on side b. At equilibrium, the concentration of bound toxin is given by [Tox]bound = [Tox]a - [Toxfree]a = [Tox]a - [Tox]b.