| Literature DB >> 159621 |
G J Brewer, J C Aster, C A Knutsen, W C Kruckeberg.
Abstract
Calcium stimulates, and zinc inhibits, a wide variety of cell types. In the erythrocyte, we have found calcium and zinc to have antagonist actions in a variety of systems. An important mechanism for calcium effects on cells is activation of calmodulin. Calmodulin is a small ubiquitous protein which, when activated by calcium, has a large array of cellular regulatory functions. We now report that calmodulin function is inhibited by low concentrations of zinc. Zinc inhibition of calmodulin provides a rational molecular mechanism for the diverse cellular inhibitory effects of zinc, as well as for zinc's antagonism of calcium effects.Entities:
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Year: 1979 PMID: 159621 DOI: 10.1002/ajh.2830070107
Source DB: PubMed Journal: Am J Hematol ISSN: 0361-8609 Impact factor: 10.047