Calcium-promoted protein phosphorylation in plants

Veluthambi, K. ; Poovaiah, B. W. (1984) Calcium-promoted protein phosphorylation in plants Science, 223 (4632). pp. 167-169. ISSN 0036-8075

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Official URL: http://www.sciencemag.org/content/223/4632/167.sho...

Related URL: http://dx.doi.org/10.1126/science.223.4632.167

Abstract

Phosphorylation of several polypeptides in corn coleoptiles was promoted by adding calcium. Chlorpromazine, a calmodulin inhibitor, reduced calcium-promoted phosphorylation, suggesting that the phosphorylation was modulated by calmodulin. This is evidence for the role of calcium in protein phosphorylation in plants and could serve as an experimental approach to understanding the molecular mechanism by which calcium modulates various physiological processes in plants.

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