Related Experiment Video
Updated: Jun 27, 2026

A Guide to Production, Crystallization, and Structure Determination of Human IKK1/α
Published on: November 2, 2018
C-mip interacts physically with RelA and inhibits nuclear factor kappa B activity.
Maud Kamal1, Asta Valanciute, Karine Dahan
1INSERM, U 841, Créteil 94010, France; Institut Mondor de Recherche Biomédicale (IMRB), Département "génétique", Equipe "21", Créteil, F-94010, France.
The novel protein c-mip regulates nuclear factor-kappa B (NF-kappaB) activity by inhibiting GSKbeta and stabilizing NF-kappaB/I-kappaBalpha complexes. This finding reveals c-mip as a key regulator in the NF-kappaB signaling pathway.
Area of Science:
- Molecular Biology
- Cell Signaling
- Immunology
Background:
- Nuclear factor-kappa B (NF-kappaB) activity is critical for cellular functions, requiring precise regulation by activators and inhibitors.
- The intricate balance governing NF-kappaB activation is not fully understood, with potential missing regulatory components.
Purpose of the Study:
- To investigate the role of the novel protein c-mip in the regulation of NF-kappaB signaling.
- To elucidate the molecular mechanisms by which c-mip influences NF-kappaB pathway components.
Main Methods:
- Co-immunoprecipitation assays to study protein interactions.
- Western blotting to assess protein degradation and complex formation.
- Analysis of NF-kappaB pathway components, including GSKbeta, RelA, I-kappaBalpha, and NF-kappaB/I-kappaBalpha complexes.
Main Results:
- c-mip was identified as a protein that inactivates GSKbeta.
- c-mip directly interacts with RelA, a crucial NF-kappaB family member.
- c-mip inhibits the degradation of I-kappaBalpha, thereby preventing the dissociation of NF-kappaB/I-kappaBalpha complexes.
- c-mip functions downstream in the classical NF-kappaB signaling pathway.
Conclusions:
- c-mip plays a significant inhibitory role in NF-kappaB activation.
- c-mip may represent a key regulatory link in controlling NF-kappaB activity.
- The findings provide new insights into the fine-tuning of NF-kappaB signaling.
More Related Videos
10:57NF-κB-dependent Luciferase Activation and Quantification of Gene Expression in Salmonella Infected Tissue Culture Cells
Published on: January 12, 2020
10:05Visualization of Protein-protein Interaction in Nuclear and Cytoplasmic Fractions by Co-immunoprecipitation and In Situ Proximity Ligation Assay
Published on: January 16, 2017
Related Concept Videos
Co-activators and Co-repressors
Co-activators and Co-repressors
NF-κB-dependent Signaling Pathway
NF-κB-dependent Signaling Mechanism
The heterodimer of NF-κB...
Regulation of Nuclear Protein Sorting
NF-kB-dependent Signaling Pathway
NF-κB-dependent Signaling Mechanism
The heterodimer of NF-κB...
RNA Polymerase II Accessory Proteins