Functions and Molecular Mechanisms of Deltex Family Ubiquitin E3 Ligases in Development and Disease
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Updated: Oct 20, 2025

In Vitro Analysis of E3 Ubiquitin Ligase Function
Published on: May 14, 2021
Lidong Wang1, Xiaodan Sun2, Jingni He1
1Department of General Surgery, Shengjing Hospital of China Medical University, Shenyang, China.
Abstract:
Ubiquitination is a posttranslational modification of proteins that significantly affects protein stability and function. The specificity of substrate recognition is determined by ubiquitin E3 ligase during ubiquitination. Human Deltex (DTX) protein family, which functions as ubiquitin E3 ligases, comprises five members, namely, DTX1, DTX2, DTX3, DTX3L, and DTX4. The characteristics and functional diversity of the DTX family proteins have attracted significant attention over the last decade. DTX proteins have several physiological and pathological roles and are closely associated with cell signal transduction, growth, differentiation, and apoptosis, as well as the occurrence and development of various tumors. Although they have been extensively studied in various species, data on structural features, biological functions, and potential mechanisms of action of the DTX family proteins remain limited. In this review, recent research progress on each member of the DTX family is summarized, providing insights into future research directions and potential strategies in disease diagnosis and therapy.
Insights
The Deltex (DTX) protein family, crucial ubiquitin E3 ligases, impacts protein stability and cell functions. This review summarizes DTX protein research, highlighting their roles in disease and potential therapeutic strategies.
Area of Science:
- Biochemistry
- Molecular Biology
- Cell Biology
Background:
- Ubiquitination is a key posttranslational modification regulating protein stability and function.
- Ubiquitin E3 ligases, like the human Deltex (DTX) protein family, dictate substrate specificity in ubiquitination.
- The DTX family (DTX1-4, DTX3L) plays significant roles in cellular processes and disease.
Purpose of the Study:
- To review recent advancements in understanding the DTX protein family.
- To consolidate knowledge on the structural features, biological functions, and mechanisms of DTX proteins.
- To identify future research directions and therapeutic strategies related to DTX proteins.
Main Methods:
- Literature review of recent research on DTX family proteins.
- Synthesis of data on structural characteristics and biological functions.
- Analysis of DTX protein involvement in physiological and pathological processes.
Main Results:
- DTX proteins are involved in cell signaling, growth, differentiation, and apoptosis.
- The DTX family is implicated in the development of various tumors.
- Despite extensive study, detailed structural and mechanistic data for DTX proteins remain limited.
Conclusions:
- The DTX protein family exhibits diverse functions and is critical in cellular regulation and disease.
- Further research is needed to elucidate the structural and mechanistic aspects of DTX proteins.
- Understanding DTX proteins offers potential for novel diagnostic and therapeutic approaches in diseases like cancer.
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