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Updated: Jul 3, 2026
09:17
Co-immunoprecipitation Assay Using Endogenous Nuclear Proteins from Cells Cultured Under Hypoxic Conditions
Published on: August 2, 2018
Post-translational modification of proteins during intermittent hypoxia
Ganesh K Kumar1, Nanduri R Prabhakar
1The Center for Systems Biology, Department of Medicine, University of Chicago, 5841 South Maryland Avenue, Chicago, IL 60637, USA. gkumar@medicine.bsd.uchicago.edu
Respiratory Physiology & Neurobiology
|July 8, 2008
Summary
Chronic intermittent hypoxia (CIH), linked to sleep apnea, alters protein phosphorylation. Further research using proteomics is needed to understand these critical changes in protein function.
Area of Science:
- Biochemistry
- Physiology
- Sleep Medicine
Background:
- Post-translational modifications (PTMs) regulate protein function.
- Chronic intermittent hypoxia (CIH) from sleep disordered breathing causes autonomic dysfunction.
- Understanding PTMs in CIH is crucial for disease mechanisms.
Purpose of the Study:
- To review recent findings on protein PTMs induced by CIH.
- To highlight the role of phosphorylation in CIH-related pathways.
- To emphasize the need for advanced proteomics in CIH research.
Main Methods:
- Analysis of PTMs involves electrophoretic separation of proteins.
- Immunolabeling with specific antibodies identifies modified protein forms.
- Review of recent scientific literature on CIH and PTMs.
Main Results:
- CIH alters the phosphorylation state of proteins involved in gene transcription, signaling, and neurotransmitter synthesis.
- Specific enzymatic machinery catalyzes CIH-induced phosphorylation.
- The extent of phosphorylation changes depends on CIH pattern, duration, and severity.
Conclusions:
- Protein phosphorylation is a key PTM regulated by CIH.
- Current understanding of CIH-associated PTMs is limited.
- High-throughput proteomics are essential to uncover further PTMs in CIH-affected pathways.
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