Chemical and structural approaches to investigate PTEN function and regulation

Thibault Viennet, Santiago Rodriguez Ospina, Yunqi Lu, Anna Cui, Haribabu Arthanari, Daniel R. Dempsey*

*Corresponding author af dette arbejde

Publikation: Bidrag til bog/antologi/rapport/proceedingBidrag til bog/antologiForskningpeer review

7 Citationer (Scopus)

Abstract

Phosphatase and tensin homolog is a lipid phosphatase that serves as the major negative regulator of the PI3K/AKT pathway. It catalyzes the 3′-specific dephosphorylation of phosphatidylinositol (3,4,5)-trisphosphate (PIP3) to generate PIP2. PTEN's lipid phosphatase function depends on several domains, including an N-terminal segment spanning the first 24 amino acids, which results in a catalytically impaired enzyme when mutated. Furthermore, PTEN is regulated by a cluster of phosphorylation sites located on its C-terminal tail at Ser380, Thr382, Thr383, and Ser385, which drives its conformation from an open to a closed autoinhibited but stable state. Herein, we discuss the protein chemical strategies we used to reveal the structure and mechanism of how PTEN's terminal regions govern its function.

OriginalsprogEngelsk
TitelIntegrated Methods in Protein Biochemistry : Part C
RedaktørerArun K. Shukla
Antal sider30
Vol/bind682
ForlagELSEVIER ACADEMIC PRESS INC
Publikationsdatojan. 2023
Sider289-318
ISBN (Trykt)9780443185922
DOI
StatusUdgivet - jan. 2023
Udgivet eksterntJa
NavnMethods in Enzymology
Vol/bind682
ISSN0076-6879

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