Cited by 599Cancer, Lipids, and MetabolismLipid metabolism and biosynthesisCholesterol and Lipid Metabolism

A common bicyclic protein kinase cascade inactivates the regulatory enzymes of fatty acid and cholesterol biosynthesis

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Carling, David, Zammit, Victor A., Hardie, D.Grahame·1987·FEBS Letters

Abstract

A highly purified rat liver protein kinase phosphorylates and inactivates acetyl-CoA carboxylase, and causes rapid inactivation of microsomal HMG-CoA reductase in the presence of MgATP. Both effects are stimulated in an identical manner by AMP, and are greatly reduced by prior treatment of the kinase with purified protein phosphatase. The dephosphorylated kinase can be reactivated in the presence of MgATP, apparently due to a distinct kinase kinase, and this reactivation is stimulated by nanomolar concentrations of palmitoyl-CoA. These results show that a common, bicyclic protein kinase cascade can potently inactivate the regulatory enzymes of both fatty acid and cholesterol biosynthesis.

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  • Once activated, AMPK redirects metabolism toward increased catabolism or decreased anabolism through phosphorylation of key proteins across multiple pathways, including protein synthesis, lipid homeostasis, glucose metabolism, and mitochondrial homeostasis.

    “Once activated, AMPK redirects metabolism toward increased catabolism or decreased anabolism through the phosphorylation of key proteins across multiple pathways, including protein synthesis (e.g., mammalian target of rapamycin complex (1) [2,3], lipid homeostasis (e.g., acetyl coenzyme A carboxylase, ACC) [4,5], glucose metabolism (e.g., phosphofructokinase (2) [6], and mitochondrial homeostasis”

    From AMPK, Mitochondrial Function, and Cardiovascular Disease (2020) · cites this paper as [4]

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Research works printed but not linked: 6

  1. Munday, M.R., Haystead, T.A. J., Holland, R., Carling, D. and Hardie, D.G. (1986) Biochem. Sot. Trans. 14, 559-562.
  2. Brownsey, R.W. and Denton, R.M. (1987) in: The Enzymes (Boyer, P.D. and Krebs, E.G. eds) 3rd edn, ~01.18, pp.123-146, Academic Press, New York.
  3. Carling, D. and Hardie, D.G. (1986) Biochem. Sot. Trans. 14, 1076-1077.
  4. Gibson, D.M. and Parker, R.A. (1987) in: The Enzymes (Boyer, P.D. and Krebs, E.G. eds) 3rd edn, ~01.18, pp.179-215, Academic Press, New York.
  5. Beg, Z.H., Stonik, J.A. and Brewer, H.B. (1979) Proc. Natl. Acad. Sci. USA 76, 4375-4379.
  6. Faust, J.R., Luskey, K.L., Chin, D.J., Goldstein, J.L. and Brown, M.S. (1982) Proc. Natl. Acad. Sci. USA 79, 5205-5209.

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Authors
Carling, D., Zammit, V. A., & Hardie, D. G.
Affiliations
  • University of Dundee (GB)
  • Hannah Research Foundation (GB)
Corresponding author
Hardie, D.Grahame
Venue
FEBS Letters
Publisher
Wiley
Published
1987-11-02
Volume
223
Issue
2
Pages
217-222
ISSN
  • 0014-5793 (ISSN-L)
  • 1873-3468
OpenAlex
W2033823674
Cited by
599
References
25
Citations by year
2026: 11 · 2025: 24 · 2024: 20 · 2023: 23 · 2022: 27 · 2021: 30 · 2020: 29 · 2019: 30 · 2018: 23 · 2017: 14 · 2016: 28 · 2015: 17 · 2014: 24 · 2013: 30 · 2012: 22
FWCI
6.48
Type
journal article
Language
en
Open access
Locations
  • FEBS Letters (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • British Heart Foundation
  • Medical Research Council
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › Cancer, Lipids, and Metabolism
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Biochemistry › Lipid metabolism and biosynthesis
  • Health Sciences › Medicine › Surgery › Cholesterol and Lipid Metabolism
Keywords
protein kinase cascades, acetyl-CoA carboxylase, HMG-CoA reductase, fatty acid synthesis, cholesterol biosynthesis, AMP, palmitoyl-CoA, kinase dephosphorylation, protein phosphatase, enzyme inactivation
MeSH terms
Acetyl-CoA Carboxylase, Adenosine Monophosphate, Animals, Cholesterol, Fatty Acids, Hydroxymethylglutaryl CoA Reductases, Ligases, Liver, Phosphoprotein Phosphatases, Phosphoproteins, Phosphorylation, Protein Kinases, Rats

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