alexa Isolation and preliminary characterization of a casein kinase from cauliflower nuclei.
Environmental Sciences

Environmental Sciences

Journal of Biodiversity, Bioprospecting and Development

Author(s): Murray MG, Guilfoyle TJ, Key JL, Murray MG, Guilfoyle TJ, Key JL

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Abstract A casein-type protein kinase has been isolated from cauliflower (Brassica cauliflora Gars.) nuclei and purified to a specific activity of 23,000 units/milligram of protein (1 unit is defined as the transfer of 1 picomole of (32)Pi from gamma-[(32)P]ATP to substrate per minute at 28 C). The enzyme has a molecular weight of approximately 39,000 as judged by sucrose density gradient sedimentation. The casein kinase requires ATP as the phosphate donor and will phosphorylate casein and phosvitin, but not histones. The enzyme activity is not affected by cAMP or cGMP. The casein kinase appears to be analogous to casein kinases described in other plant and animal systems.
This article was published in Plant Physiol and referenced in Journal of Biodiversity, Bioprospecting and Development

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