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[Research progress in PRAS40]
Gang Chen1, Gangcai Zhu1, Xin Zhang1
1Department of Otorhinolaryngology Head and Neck Surgery, Second Xiangya Hospital, Central South University, Changsha 410011, China.
Abstract:
Prolin-rich Akt substrate of 40 kD (PRAS40) is firstly identified as a partner of 14-3-3 protein and a substrate of Akt kinase by Roth et al in 2003. Accumulated evidence shows that PRAS40 is mainly activated by phosphorylate modification at different sites. PRAS40 may be involved in various of signaling pathways, such as mammalian target of rapamycin complex 1 (mTORC1), protein kinase B (Akt), NF-κB and ribosomal protein L11 (RPL11) etc, which can regulate cell proliferation, senescence, autophagy, apoptosis and exosome secretion.
Insights
Prolin-rich Akt substrate of 40 kD (PRAS40) is a key protein regulated by phosphorylation. PRAS40 impacts cell growth, senescence, and apoptosis through various signaling pathways like mTORC1 and Akt.
Area of Science:
- Molecular Biology
- Cell Signaling
Background:
- Prolin-rich Akt substrate of 40 kD (PRAS40) was identified in 2003 as a 14-3-3 protein partner and Akt kinase substrate.
- PRAS40 activation primarily occurs through phosphorylation at distinct sites.
Purpose of the Study:
- To elucidate the role of PRAS40 in cellular processes.
- To understand PRAS40's involvement in key signaling pathways.
Main Methods:
- Review of existing literature on PRAS40.
- Analysis of PRAS40's phosphorylation and its downstream effects.
Main Results:
- PRAS40 is implicated in regulating cell proliferation, senescence, autophagy, and apoptosis.
- PRAS40 interacts with signaling pathways including mTORC1, Akt, NF-κB, and RPL11.
Conclusions:
- PRAS40 plays a significant role in cellular regulation.
- Phosphorylation of PRAS40 is critical for its function in diverse biological processes.
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