Brown KK. AMPK CA(R)Sts a new light on amino acid sensing.
EMBO J 2021;
40:e109575. [PMID:
34582060 DOI:
10.15252/embj.2021109575]
[Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Accepted: 08/27/2021] [Indexed: 01/18/2023] Open
Abstract
AMP-activated protein kinase (AMPK) is recognized as a critical regulator of cellular energy metabolism impacted by AMP/ATP and ADP/ATP ratios, or glucose- and fatty acid-derived metabolites. However, its ability to sense alterations in amino acid levels is poorly understood. Recent work by Yuan et al (2021) identifies a novel mechanism of AMPK regulation responsive to changes in availability of the sulfur-containing amino acid cysteine.
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