1. N-terminal phosphorylation regulates the activity of Glycogen Synthase Kinase 3 from Plasmodium falciparum
- Author
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C. Loew, Samuel Pazicky, Haydyn D. T. Mertens, Dmitri I. Svergun, Tim-Wolf Gilberger, and Arne Alder
- Subjects
Models, Molecular ,Molecular model ,Plasmodium falciparum ,Biochemistry ,Glycogen Synthase Kinase 3 ,X-Ray Diffraction ,GSK-3 ,Scattering, Small Angle ,Escherichia coli ,Parasite hosting ,Malaria, Falciparum ,Phosphorylation ,Molecular Biology ,chemistry.chemical_classification ,biology ,Autophosphorylation ,Computational Biology ,Cell Biology ,biology.organism_classification ,In vitro ,Cell biology ,Enzyme Activation ,Enzyme ,chemistry ,ddc:540 ,Signal Transduction - Abstract
The biochemical journal / Reviews 479(3), 337 - 356 (2022). doi:10.1042/BCJ20210829, As the decline of malaria cases stalled over the last five years, novel targets in Plasmodium falciparum are necessary for the development of new drugs. Glycogen Synthase Kinase (PfGSK3) has been identified as a potential target, since its selective inhibitors were shown to disrupt the parasitès life cycle. In the uncanonical N-terminal region of the parasite enzyme, we identified several autophosphorylation sites and probed their role in activity regulation of PfGSK3. By combining molecular modeling with experimental small-angle X-ray scattering data, we show that increased PfGSK3 activity is promoted by conformational changes in the PfGSK3 N-terminus, triggered by N-terminal phosphorylation. Our work provides novel insights into the structure and regulation of the malarial PfGSK3., Published by Portland Pr., London [u.a.]
- Published
- 2021
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