Relationships between isoelectric points' values and ion filtration chromatographic mobilities of multiple forms of purified rat liver superoxide dismutase

Abstract

1. 1. Purified rat liver Superoxide dismutase exists as a group of multiple forms revealed by electrophoresis, gel electrofocusing and ion filtration chromatography. 2. 2. Multiple forms of rat liver Superoxide dismutase with lower isoelectric points' values have more ion filtration mobilities on cation exchanger (CM-Sephadex C-25) at pH 4.75, than the multiple forms with higher ones. 3. 3. Contrary regularity between ion filtration mobilities and isoelectric points' values of these multiple forms, takes place on anion exchanger (DEAE-Sephadex A-25 and A-50).