The DOI matches its Crossref record; 30 of the 30 references it cites were found in a registry or an index.
The Ca2+/Calmodulin-dependent Protein Kinase Kinases Are AMP-activated Protein Kinase Kinases
Open accessAbstract
The AMP-activated protein kinase (AMPK) is an important regulator of cellular metabolism in response to metabolic stress and to other regulatory signals. AMPK activity is absolutely dependent upon phosphorylation of AMPKalphaThr-172 in its activation loop by one or more AMPK kinases (AMPKKs). The tumor suppressor kinase, LKB1, is a major AMPKK present in a variety of tissues and cells, but several lines of evidence point to the existence of other AMPKKs. We have employed three cell lines deficient in LKB1 to study AMPK regulation and phosphorylation, HeLa, A549, and murine embryo fibroblasts derived from LKB(-/-) mice. In HeLa and A549 cells, mannitol, 2-deoxyglucose, and ionomycin, but not 5-aminoimidazole-4-carboxamide-1-beta-d-ribofuranoside (AICAR), treatment activates AMPK by alphaThr-172 phosphorylation. These responses, as well as the downstream effects of AMPK on the phosphorylation of acetyl-CoA carboxylase, are largely inhibited by the Ca(2+)/ calmodulin-dependent protein kinase kinase (CaMKK) inhibitor, STO-609. AMPKK activity in HeLa cell lysates measured in vitro is totally inhibited by STO-609 with an IC50 comparable with that of the known CaMKK isoforms, CaMKKalpha and CaMKKbeta. Furthermore, 2-deoxyglucose- and ionomycin-stimulated AMPK activity, alphaThr-172 phosphorylation, and acetyl-CoA carboxylase phosphorylation are substantially reduced in HeLa cells transfected with small interfering RNAs specific for CaMKKalpha and CaMKKbeta. Lastly, the activation of AMPK in response to ionomycin and 2-deoxyglucose is not impaired in LKB1(-/-) murine embryo fibroblasts. These data indicate that the CaMKKs function in intact cells as AMPKKs, predicting wider roles for these kinases in regulating AMPK activity in vivo.
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Shaw, R. J., Kosmatka, M., Bardeesy, N., Hurley, R. L., Witters, L. A., DePinho, R. A., & Cantley, L. C. (2004) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.0308061100 · Cited by 1,797
Self-citationHawley, S. A., Boudeau, J., Reid, J. L., Mustard, K. J., Udd, L., Mäkelä, T. P., Alessi, D. R., & Hardie, D. G. (2003) · Journal of Biology · doi:10.1186/1475-4924-2-28 · Cited by 1,665
LKB1 is the upstream kinase in the AMP-activated protein kinase cascade
Woods, A., Johnstone, S. R., Dickerson, K., Leiper, F. C., Fryer, L. G. D., Neumann, D., Schlattner, U., Wallimann, T., Carlson, M., & Carling, D. (2003) · Current Biology · doi:10.1016/j.cub.2003.10.031 · Cited by 1,650
The AMP-activated protein kinase cascade – a unifying system for energy control
Carling, D. (2004) · Trends in Biochemical Sciences · doi:10.1016/j.tibs.2003.11.005 · Cited by 1,112
Management of cellular energy by the AMP‐activated protein kinase system
Hardie, D. G., Scott, J. W., Pan, D. A., & Hudson, E. R. (2003) · FEBS Letters · doi:10.1016/s0014-5793(03)00560-x · Cited by 855
Activation of yeast Snf1 and mammalian AMP-activated protein kinase by upstream kinases
Hong, S.-P., Leiper, F. C., Woods, A., Carling, D., & Carlson, M. (2003) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.1533136100 · Cited by 595
Deficiency of LKB1 in skeletal muscle prevents AMPK activation and glucose uptake during contraction
Sakamoto, K., McCarthy, A., Smith, D., Green, K. A., Grahame Hardie, D., Ashworth, A., & Alessi, D. R. (2005) · The EMBO Journal · doi:10.1038/sj.emboj.7600667 · Cited by 544
The Ca2+–calmodulin-dependent protein kinase cascade
Soderling, T. R. (1999) · Trends in Biochemical Sciences · doi:10.1016/s0968-0004(99)01383-3 · Cited by 509
Hawley, S. A., Selbert, M. A., Goldstein, E. G., Edelman, A. M., Carling, D., & Hardie, D. G. (1995) · Journal of Biological Chemistry · doi:10.1074/jbc.270.45.27186 · Cited by 440
Effect of Exercise Intensity on Skeletal Muscle AMPK Signaling in Humans
Chen, Z.-P., Stephens, T. J., Murthy, S., Canny, B. J., Hargreaves, M., Witters, L. A., Kemp, B. E., & McConell, G. K. (2003) · Diabetes · doi:10.2337/diabetes.52.9.2205 · Cited by 369
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AMPK: a nutrient and energy sensor that maintains energy homeostasis
Hardie, D. G., Ross, F. A., & Hawley, S. A. (2012) · Nature Reviews Molecular Cell Biology · doi:10.1038/nrm3311 · Cited by 4,602
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Mihaylova, M. M., & Shaw, R. J. (2011) · Nature Cell Biology · doi:10.1038/ncb2329 · Cited by 2,923
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Klionsky, D. J., Abdel-Aziz, A. K., Abdelfatah, S., Abdellatif, M., Abdoli, A., Abel, S., Abeliovich, H., Abildgaard, M. H., Abudu, Y. P., Acevedo-Arozena, A., et al. (2021) · Autophagy · doi:10.1080/15548627.2020.1797280 · Cited by 2,897
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Metadata
- Authors
- Hurley, R. L., Anderson, K. A., Franzone, J. M., Kemp, B. E., Means, A. R., & Witters, L. A.
- Venue
- Journal of Biological Chemistry
- Publisher
- Elsevier BV
- Published
- 2005-08
- Volume
- 280
- Issue
- 32
- Pages
- 29060-29066
- ISSN
- 0021-9258 (ISSN-L)
- OpenAlex
- W2098947405
- Cited by
- 1,018
- References
- 30
- FWCI
- 22.13
- Type
- journal article
- Language
- en
- Open access
- hybrid
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