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Metformin activates AMP-activated protein kinase by promoting formation of the αβγheterotrimeric complex

  • Shumei Meng
  • , Jia Cao
  • , Qiyi He
  • , Lishou Xiong
  • , Evan Chang
  • , Sally Radovick
  • , Fredric E. Wondisford
  • , Ling He

Research output: Contribution to journalArticlepeer-review

Abstract

Background: The mechanism underlying the activation of AMPK by metformin remains unclear. Results: Metformin promotes the formation of AMPK αβγ heterotrimeric complex. Conclusion: The formation of the AMPK αβγ heterotrimeric complex augments AMPK αβγ phosphorylation by LKB1 and prevents dephosphorylation by protein phosphatase. Significance: Metformin-mediated formation of the AMPK αβγ heterotrimeric complex results in AMPK activation by elevating AMPK phosphorylation at Thr-172.

Original languageEnglish (US)
Pages (from-to)3393-3802
Number of pages410
JournalJournal of Biological Chemistry
Volume290
Issue number6
DOIs
StatePublished - Feb 6 2015

ASJC Scopus subject areas

  • Biochemistry
  • Molecular Biology
  • Cell Biology

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