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Characterization at the Molecular Level using Robust Biochemical Approaches of a New Kinase Protein
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"Phosphoproteomic quantification based on phosphopeptide intensity or occupancy? An evaluation based on casein kinase
Arielis Rodríguez-Ulloa1, Mauro Rosales2, Yassel Ramos1
1Proteomics Group, Department of System Biology, Biomedical Research Division, Center for Genetic Engineering& Biotechnology (CIGB), Havana 10600, Cuba.
Journal of Proteomics
|August 4, 2024
Summary
Phosphopeptide occupancy, not just intensity, is crucial for accurate quantitative phosphoproteomics. Occupancy analysis reveals more biological insights in AML cell lines treated with CK2 inhibitors.
Area of Science:
- Proteomics
- Molecular Biology
- Biochemistry
Background:
- Quantitative phosphoproteomics typically compares phosphopeptide intensities.
- Phosphopeptide occupancy is a more accurate metric but is underutilized.
- Current methods may lead to misinterpretation of phosphoproteomic data.
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