Abstract
AbstractNon‐heme iron proteins were stainned in the gel with bathophenanthroline disulfonate after polyacrylamide gel electrophoresis. This staining method proved more resistant to color fading than iron detection by α,α′‐dipyridyl, with >50% of the color being retained after 24 h by three ferredoxins of different origin. A linear relationship was found for the amount of iron in non‐heme iron proteins, applied to the gel, and the areas of densitometric tracings.
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