Abstract
Mucosal ferritin was isolated from rat intestinal mucosa. The precipitin test in gel revealed no serological difference between rat mucosal and liver ferritin. The Fe/Protein ratio of purified mucosal ferritin was strikingly lower than than that of rat liver ferritin. The isoelectric points of mucosal iso-ferritins were shifted to lower pH (pH 4.80-5.10) than those of rat liver isof erritins (pH 5.15-5.45) . The amino acid composition values were significantly different for liver and mucosal ferritin. Mucosal ferritin was found in both the brush border fraction and the supernatant fraction of mucosal cellular components.
