Related Experiment Video
Updated: Jul 18, 2026

In Vitro Analysis of E3 Ubiquitin Ligase Function
Published on: May 14, 2021
E3 Ubiquitin Ligases and Their Therapeutic Applications in Cancers: Narrative Review
Azfar Jamal1,2
1Department of Biology, College of Science, Al-Zulfi-, Majmaah University, Majmaah, Riyadh, Saudi Arabia.
Abstract:
E3 ubiquitin ligases are a class of enzymes, essential for maintaining the equilibrium of cells by binding ubiquitin molecules to substrates to mark them for destruction. Since many cancer-related proteins, including both oncogenic and tumor-suppressive ones, are controlled by the ubiquitin-proteasome system, E3 ligases have drawn a great deal of interest as potential targets for the creation of anti-cancer drugs. This is because E3 ligases function as modules that select the substrates that are intended for degradation, giving them the ability to particularly affect proteins that are connected to cancer. Their molecular properties and the ways in which they work serve as the basis for these distinctions. Investment in the creation of bioactive substances that can target E3 ligases is essential given the crucial roles they play in cancer. These substances have the potential to be powerful cancer-fighting tools. In this review, we explore the crucial roles that E3 ligases play in the biology of cancer. We also examine the current bioactive substances that have been created to target different E3 ligases, emphasizing their potential as candidates for treating the cancers.
Insights
E3 ubiquitin ligases are crucial enzymes in cell regulation and cancer biology. Targeting these ligases with new drugs offers promising strategies for developing novel anti-cancer therapies.
Area of Science:
- Biochemistry
- Molecular Biology
- Oncology
Background:
- E3 ubiquitin ligases regulate cellular processes by marking proteins for degradation via the ubiquitin-proteasome system.
- Dysregulation of the ubiquitin-proteasome system, involving E3 ligases, is implicated in various cancers.
- E3 ligases' substrate specificity makes them attractive targets for cancer drug development.
Purpose of the Study:
- To review the critical roles of E3 ubiquitin ligases in cancer biology.
- To examine existing bioactive compounds targeting E3 ligases for cancer therapy.
Main Methods:
- Literature review of E3 ligase function in cancer.
- Analysis of current drug discovery efforts targeting E3 ligases.
Main Results:
- E3 ligases are key regulators of oncogenic and tumor-suppressive proteins.
- Several bioactive substances targeting E3 ligases show potential as anti-cancer agents.
Conclusions:
- E3 ligases are vital targets for novel cancer therapeutics.
- Targeted therapies modulating E3 ligase activity represent a promising frontier in oncology.
Related Concept Videos
Covalently Linked Protein Regulators
These groups modify specific amino acids in a protein.
Regulated Protein Degradation
Protein degradation plays two important roles in the cells. It helps to protect cells from misfolded or damaged proteins before they lead to a...
Drugs that Stabilize Microtubules
Mitogens and the Cell Cycle
Targeted Cancer Therapies
There are several types of targeted therapies against specific...
Drugs that Destabilize Microtubules

