Size-exclusion chromatography measurements of wild-type SOD1, A4V, and oxidized wild-type SOD1.

<p>Wild-type SOD1 (black line), A4V (red line), and wild-type SOD1 oxidized by hydrogen peroxide (blue line) samples (20–30 µM when injected) in 100 mM phosphate buffer (pH 6.7) containing 100 mM Na₂SO₄ and 0.05% NaN₃. The absorbance was measured at 280 nm.