Related Experiment Video
Updated: Apr 21, 2026

07:58
In-vitro Reconstitution of Bacterial Ubiquitination and VCP/p97-mediated Elimination
Published on: January 2, 2026
657
Ubiquitin-mediated NFκB degradation pathway.
Cellular & Molecular Immunology
|October 28, 2014
Summary
Nuclear factor kappa B (NFκB) regulates inflammation and immunity. This review details how ubiquitin ligases control NFκB degradation, crucial for preventing diseases linked to its dysregulation.
Area of Science:
- Molecular Biology
- Immunology
- Biochemistry
Background:
- Nuclear factor kappa B (NFκB) is a key transcription factor involved in immune responses and inflammation.
- Dysregulation of NFκB is implicated in various diseases, including autoimmune disorders and cancer.
- The ubiquitin-dependent proteasomal degradation pathway is a critical negative regulator of NFκB activity.
Purpose of the Study:
- To review recent advancements in understanding the role of ubiquitin ligases in regulating NFκB degradation.
- To highlight the mechanisms by which ubiquitin ligases control NFκB pathway activity.
- To provide insights into potential therapeutic targets related to NFκB regulation.
Main Methods:
- Literature review of recent research on ubiquitin ligases and NFκB.
- Analysis of molecular mechanisms governing NFκB ubiquitination and degradation.
- Synthesis of current knowledge on the interplay between ubiquitin-proteasome system and NFκB signaling.
Main Results:
- Ubiquitin ligases are essential components controlling the stability and activity of NFκB.
- Specific ubiquitin ligases have been identified that target key NFκB pathway components for degradation.
- Understanding these regulatory mechanisms is vital for comprehending NFκB-associated pathologies.
Conclusions:
- Ubiquitin ligases play a pivotal role in the negative feedback control of the NFκB pathway.
- Targeting ubiquitin ligases offers potential therapeutic strategies for inflammatory, autoimmune diseases, and cancer.
- Further research into ubiquitin ligase function in NFκB regulation is warranted.
Related Concept Videos
NF-κB-dependent Signaling Pathway
7.3K
The transcription factor NF-κB was discovered in 1986 in the lab of Nobel laureate Professor David Baltimore, for its interaction with the immunoglobulin light chain enhancer in B-cells. After more than three decades of study, it is now evident that NF-κB regulates the expression of over 100 genes. Most of these genes play an essential role in the innate and adaptive immune responses as well as the inflammatory responses of animals.
NF-κB-dependent Signaling Mechanism
The...
NF-κB-dependent Signaling Mechanism
The...
7.3K
Regulated Protein Degradation
6.5K
It is vital to regulate the activity of enzymatic as well as non-enzymatic proteins inside the cell. This can be achieved either through creating a balance between their rate of synthesis and degradation or regulating the intrinsic activity of the protein. Both these regulation mechanisms play an essential role in the normal functioning of cells.
Protein degradation plays two important roles in the cells. It helps to protect cells from misfolded or damaged proteins before they lead to a...
Protein degradation plays two important roles in the cells. It helps to protect cells from misfolded or damaged proteins before they lead to a...
6.5K
Regulated Protein Degradation
2.4K
2.4K
Receptor Downregulation in MVBs
2.0K
Multivesicular bodies (MVBs) are mature endosomes that sort ubiquitinated proteins and then fuse with lysosomes to degrade the sorted proteins. Epidermal growth factor (EGF) and its receptor (EGFR) form a complex that can be internalized through endocytosis, sorted into an MVB, and later degraded.
The EGFR can initiate signaling pathways that lead to cell proliferation, migration, and differentiation. Overexpression of EGFR stimulates cells to proliferate. Excessive EGFR...
The EGFR can initiate signaling pathways that lead to cell proliferation, migration, and differentiation. Overexpression of EGFR stimulates cells to proliferate. Excessive EGFR...
2.0K
NF-kB-dependent Signaling Pathway
2.0K
2.0K
The Proteasome
1.6K
Eukaryotic cells can degrade proteins through several pathways. One of the most important among these is the ubiquitin-proteasome pathway. It helps the cell eliminate the misfolded, damaged, or unwarranted cytoplasmic proteins in a highly specific manner.
In this pathway, the target proteins are first tagged with small proteins called ubiquitin. This involves participation of a series of enzymes including— E1 (ubiquitin-activating enzyme), E2 (ubiquitin-conjugating enzyme), and E3...
In this pathway, the target proteins are first tagged with small proteins called ubiquitin. This involves participation of a series of enzymes including— E1 (ubiquitin-activating enzyme), E2 (ubiquitin-conjugating enzyme), and E3...
1.6K

