Guinea pig intestinal iron binding protein |
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Authors: | Simeon Pollack Fred D Lasky |
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Institution: | Department of Medicine, Division of Hematology Albert Einstein College of Medicine, Bronx, New York 10461 USA |
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Abstract: | An iron binding protein, isolated from guinea pig intestinal mucosa, was compared to guinea pig transferrin. Both had a molecular weight of approximately 80,000. The intestinal iron-binding protein consisted of 2 subunits of equal molecular weight; transferrin had no subunits. Transferrin showed an absorbance peak at 470 nm; the intestinal iron-binding protein had no visible absorbance but did have a peak at 336 nm. Electron spin resonance spectra of the two proteins dfffered. Significant differences on amino acid analysis were also identified. |
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