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Characterization of ferritin. (A) Sedimentation velocity c(s) profiles for Amersham ferritin (red) and monomeric Amersham ferritin purified by size exclusion chromatography (blue). (B) Sedimentation velocity c(s) profiles for monomeric Amersham ferritin fractions resolved on a 5–30% sucrose gradient and purified by size exclusion chromatography. Profiles for fractions 14 (red), 15 (blue), 16 (grey), and 17 (green) are shown.
