Article
Proteolysis of the Hedgehog signaling effector Cubitus interruptus requires phosphorylation by Glycogen Synthase Kinase 3 and Casein Kinase 1.
Cell - 22 Mar 2002
Price Mary Ann, Kalderon Daniel
Abstract excerpt
The secreted signaling molecule Hedgehog regulates gene expression in target cells in part by preventing proteolysis of the full-length Cubitus interruptus (Ci-155) transcriptional activator to the Ci-75 repressor form. Ci-155 proteolysis depends on phosphorylation at three sites by Protein Kinase A (PKA). We show that these phosphoserines prime further phosphorylation at adjacent Glycogen Synthase Kinase 3...
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