Related Experiment Video
Updated: Aug 7, 2026
12:26
Identification of Cyclin-dependent Kinase 1 Specific Phosphorylation Sites by an In Vitro Kinase Assay
Published on: May 3, 2018
Twice primed: cyclin E is phosphorylated and isomerized before being ubiquitinated
1Lineberger Comprehensive Cancer Center, Department of Biochemistry and Biophysics, Program in Molecular Biology and Biotechnology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, USA.
Molecular Cell
|July 22, 2006
Summary
Proteins targeted for degradation require strict regulation. This study investigates if cyclin E needs both phosphorylation and isomerization modifications to bind its receptor, challenging previous findings.
Area of Science:
- Molecular biology
- Cellular regulation
- Protein degradation
Background:
- Targeting proteins for irreversible degradation is a tightly regulated cellular process.
- Regulation often occurs at the substrate-receptor binding level.
- The necessity of dual modifications for receptor binding is under investigation.
Purpose of the Study:
- To determine if cyclin E requires both phosphorylation and isomerization for receptor binding.
- To investigate the regulatory mechanisms controlling protein degradation pathways.
Main Methods:
- The study likely involves biochemical assays to analyze protein modifications and binding interactions.
- Techniques may include in vitro binding assays and analysis of modified proteins.
Main Results:
- The findings will clarify the role of sequential modifications in protein-receptor interactions.
- Results will indicate whether van Drogen et al. (2006) findings on cyclin E are universally applicable or require re-evaluation.
Conclusions:
- The study aims to refine our understanding of how protein degradation is controlled.
- This research contributes to the field of molecular signaling and cellular homeostasis.
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