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Updated: Mar 23, 2026

Co-immunoprecipitation Assay Using Endogenous Nuclear Proteins from Cells Cultured Under Hypoxic Conditions
Published on: August 2, 2018
Targeting Protein-Protein Interactions in the HIF System
Sarah E Wilkins1, Martine I Abboud2, Rebecca L Hancock2
1Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford, OX1 3TA, UK. sarah.wilkins@chem.ox.ac.uk.
Animals adapt to low oxygen levels by activating hypoxia-inducible factor (HIF). Understanding HIF's structure and interactions offers new therapeutic strategies for diseases linked to hypoxia.
Area of Science:
- Biochemistry
- Molecular Biology
- Structural Biology
Background:
- The hypoxia-inducible factor (HIF) is crucial for cellular and systemic responses to chronic hypoxia.
- HIF regulates gene expression to counteract the effects of limited oxygen.
- HIF activity is modulated by hydroxylase-catalyzed modifications of HIF-α subunits.
Purpose of the Study:
- To provide an overview of the HIF system.
- To focus on structural insights into HIF protein-protein interactions.
- To explore therapeutic potential by modulating the HIF pathway.
Main Methods:
- Review of structural biology and biochemistry of the HIF system.
- Analysis of protein-protein and protein-nucleic acid interactions within the HIF pathway.
- Examination of HIF hydroxylase-mediated post-translational modifications.
Main Results:
- HIF-α subunit modifications signal for degradation and limit coactivator binding.
- Structural knowledge facilitates medicinal chemistry for therapeutic intervention.
- Multiple targets within the HIF system offer therapeutic possibilities.
Conclusions:
- The HIF system is a key target for treating hypoxia-related diseases.
- Structural biology advances are driving therapeutic development for the HIF pathway.
- Modulating HIF interactions presents significant medicinal potential.
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