Synthesis of functional signaling domains by combinatorial polymerization of phosphorylation motifs.

Abstract excerpt

The adaptor protein Cas contains a core substrate domain with multiple YXXP motifs that are phosphorylated by Src and other tyrosine kinases. Here, we used a synthetic strategy to determine the importance of the arrangement, spacing, and identity of the YXXP motifs. By polymerizing short DNA sequences encoding two phosphorylation motifs, we created a panel of Cas mutants in which the entire substrate domain was...

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