Phosphorylation of nonhistone chromatin proteins during sea urchin development |
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Authors: | R D Platz L S Hnilica |
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Institution: | Department of Biochemistry The University of Texas M.D. Anderson Hospital and Tumor Institute at Houston Houston, Texas 77025 USA |
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Abstract: | The phosphorylation of nonhistone chromatin proteins during development was studied in the sea urchin, . The rate of phosphorylation was found to be maximal during gastrula, slightly lower during prism and almost 70% lower in pluteus stage embryos. Analysis of the phosphorylated nonhistone chromatin proteins by SDS-acrylamide gel electrophoresis showed significant variations in the labeling pattern during different stages of development. A specific protein which is actively phosphorylated during gastrula and prism stages is nearly absent from the pluteus stage. |
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