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Functional Characterization Of Threonine 49 Phosphorylation Of Cytochrome C, Antoine Khobeir
Functional Characterization Of Threonine 49 Phosphorylation Of Cytochrome C, Antoine Khobeir
Wayne State University Theses
Cytochrome c (Cytc) is a pivotal multifunctional mitochondrial protein that serves as a single electron carrier between complexes III and IV of the electron transport chain. It has important roles in both cellular respiration and apoptosis. The novel Thr49 (T49) phosphorylation of Cytc likely affects mitochondrial respiration, membrane potential, ROS production, ATP production, and apoptosis. Based on the functional characterization of previously mapped phosphorylation sites (Tyr97, Tyr48, Thr28, Ser47, Thr58) of the lab, we hypothesize that T49 phosphorylation will lead to controlled respiration, optimal intermediate mitochondrial membrane potential, lower ROS production, and inhibition of apoptosis compared to unphosphorylated Cytc. Here …