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  • Title: Immunoperoxidase localization of vitamin D dependent calcium binding protein.
    Author: Morrissey RL, Zolock DT, Bucci TJ, Bikle DD.
    Journal: J Histochem Cytochem; 1978 Aug; 26(8):628-34. PubMed ID: 357647.
    Abstract:
    Calcium binding protein (CaBP) was localized by the indirect peroxidase-labeled antibody method in chick duodenum 72 hr after administering 32.5 nmol of cholecalciferol to vitamin D-deficient chicks. CaBP was observed in cytoplasm and nuclei of absorptive cells but was absent from goblet cells. Our results are consistent with the suggested functional role for CaBP in the prevention of intracellular accumulation of calcium by preventing mitochondrial accumulation of calcium, enhancing removal of calcium from absorptive cells, and/or preventing the "leaking" of calcium into cells through the lateral borders. They are not consistent with an extracellular functional role for CaBP.
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