Post-Translational Modifications of the TAK1-TAB Complex
Yusuke Hirata1, Miki Takahashi2, Tohru Morishita3
1Laboratory of Health Chemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3, Aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan. y-hirata@m.tohoku.ac.jp.
Abstract:
Transforming growth factor-β (TGF-β)-activated kinase 1 (TAK1) is a member of the mitogen-activated protein kinase kinase kinase (MAPKKK) family that is activated by growth factors and cytokines such as TGF-β, IL-1β, and TNF-α, and mediates a wide range of biological processes through activation of the nuclear factor-κB (NF-κB) and the mitogen-activated protein (MAP) kinase signaling pathways. It is well established that activation status of TAK1 is tightly regulated by forming a complex with its binding partners, TAK1-binding proteins (TAB1, TAB2, and TAB3). Interestingly, recent evidence indicates the importance of post-translational modifications (PTMs) of TAK1 and TABs in the regulation of TAK1 activation. To date, a number of PTMs of TAK1 and TABs have been revealed, and these PTMs appear to fine-tune and coordinate TAK1 activities depending on the cellular context. This review therefore focuses on recent advances in the understanding of the PTMs of the TAK1-TAB complex.
Insights
Transforming growth factor-β (TGF-β)-activated kinase 1 (TAK1) and its binding partners (TABs) regulate key cellular processes. Recent research highlights how post-translational modifications (PTMs) fine-tune TAK1-TAB complex activity.
Area of Science:
- Cellular signaling pathways
- Molecular biology
- Signal transduction
Background:
- Transforming growth factor-β (TGF-β)-activated kinase 1 (TAK1) is a MAPKKK family member.
- TAK1 mediates biological processes via NF-κB and MAP kinase pathways.
- TAK1 activation is regulated by binding partners TAB1, TAB2, and TAB3.
Purpose of the Study:
- To review recent advances in understanding post-translational modifications (PTMs) of the TAK1-TAB complex.
- To explore how PTMs regulate TAK1 activation and function.
- To highlight the importance of PTMs in coordinating TAK1 activities.
Main Methods:
- Literature review of recent studies on TAK1 and TAB PTMs.
- Analysis of published data on the functional consequences of TAK1 and TAB modifications.
- Synthesis of current knowledge on PTMs in the TAK1-TAB signaling network.
Main Results:
- Multiple PTMs of TAK1 and TAB proteins have been identified.
- These PTMs play crucial roles in modulating TAK1 kinase activity.
- PTMs fine-tune TAK1-TAB complex function in a context-dependent manner.
Conclusions:
- Post-translational modifications are critical regulators of TAK1-TAB complex signaling.
- Understanding TAK1 PTMs offers insights into cellular responses to growth factors and cytokines.
- Further research into TAK1 PTMs may reveal therapeutic targets for related diseases.
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