Designer and natural peptide toxin blockers of the KcsA potassium channel identified by phage display.
20 mM sodium phosphate, 10 mM sodium chloride, 7 % D2O, 0.6 mM Hui1, 0.02 % sodium azide, 93% H2O, 7% D2O
20 mM sodium phosphate, 10 mM sodium chloride, 0.02 % sodium azide, 99.9 % D2O, 0.6 mM Hui1-10, 99.9% D2O