Phosphorylation pattern of a 25 Kdalton stress protein from rat myoblasts |
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Authors: | Y J Kim J Shuman M Sette A Przybyla |
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Institution: | Department of Biochemistry University of Georgia Athens, Georgia 30602 USA |
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Abstract: | Phosphorylation of a 25 Kdalton nuclear stress protein from rat muscle was examined by two-dimensional gel electrophoresis and one-dimensional peptide mapping. These studies show that three 25 Kdalton stress proteins found in stressed rat myoblasts are actually the same protein with charge variation brought about by multiple phosphorylations. Furthermore, the predominant charge variant of 25 Kdalton protein found in cells is dependent on the intensity of the stress applied to cells. |
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