Journal
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
Volume 99, Issue 23, Pages 14706-14709Publisher
NATL ACAD SCIENCES
DOI: 10.1073/pnas.232573899
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Several yeast activators are phosphorylated by SRB10, a cyclin-dependent kinase associated with the transcriptional machinery. Sites of phosphorylation are found outside the activating region in each case, and the modification has different physiological consequences in different cases. We show here that certain acidic transcriptional activating regions contact SRB10 as assayed both in vivo and in vitro. The interaction evidently positions each activator, as it activates transcription, so that it gets phosphorylated by SRB10, and thus a common mechanism targets disparate substrates to the kinase.
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