bioRxiv preprint doi: https://doi.org/10.1101/598664; this version posted April 12, 2019. The copyright holder for this preprint (which was not certified by peer review) is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under aCC-BY-NC-ND 4.0 International license. Time resolved quantitative phosphoproteomics reveals distinct patterns of SHP2 dependence in EGFR signaling Vidyasiri Vemulapalli1,2, Lily Chylek3, Alison Erickson4, Jonathan LaRochelle1,2, Kartik Subramanian3, Morvarid Mohseni5, Matthew LaMarche5, Michael G. Acker5, Peter K. Sorger3, Steven P. Gygi4, and Stephen C. Blacklow1,2* 1Department of Cancer Biology, Dana-Farber Cancer Institute Boston, MA 02115, USA 2Department of Biological Chemistry & Molecular Pharmacology, Blavatnik Institute, Harvard Medical School, Boston, MA 02115, USA 3Laboratory of Systems Pharmacology, Harvard Medical School, Boston, MA 02115, USA 4Department of Cell Biology, Harvard Medical School, Boston, MA 02115, USA 5Novartis Institutes for Biomedical Research, Cambridge, MA, 02139, USA *To whom correspondence should be addressed:
[email protected] bioRxiv preprint doi: https://doi.org/10.1101/598664; this version posted April 12, 2019. The copyright holder for this preprint (which was not certified by peer review) is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under aCC-BY-NC-ND 4.0 International license. Abstract SHP2 is a protein tyrosine phosphatase that normally potentiates intracellular signaling by growth factors, antigen receptors, and some cytokines; it is frequently mutated in childhood leukemias and other cancers. Here, we examine the role of SHP2 in the responses of breast cancer cells to EGF by monitoring phosphoproteome dynamics when SHP2 is allosterically inhibited by the small molecule SHP099.