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Development Of Tools For Phosphosite-Specific Kinase Identification And Discovery Of Phosphatase Substrates, Pavithra Maheshani Dedigama Arachchige
Development Of Tools For Phosphosite-Specific Kinase Identification And Discovery Of Phosphatase Substrates, Pavithra Maheshani Dedigama Arachchige
Wayne State University Dissertations
Phosphorylation is a ubiquitous post translational modification implicated in many diseases, such as cancer. The phosphorylation status of cellular proteins is regulated by the activity of kinases and phosphatases. The biological significance of many phosphorylation events remain unknown because the methods to determine which kinase or phosphatase is responsible for phosphorylation are limited. Previously, we established kinase-catalyzed labeling where kinases accept γ-modified ATP analogs, such as ATP-arylazide and ATP-biotin, to label phosphoproteins. To study substrates of kinases and phosphatases, here we developed two new methods using kinase-catalyzed labeling. As one application, we developed K-CLASP (Kinase-catalyzed CrossLinking And Streptavdin Purification) to …