期刊
ACTA PHYSIOLOGICA
卷 196, 期 1, 页码 3-14出版社
WILEY
DOI: 10.1111/j.1748-1716.2009.01977.x
关键词
AMP; AMPK; drugs; regulation; structure; subunits
类别
资金
- Australian Research Council
- National Health and Medical Research Council
- National Heart Foundation
- ARC Federation
AMP-activated protein kinase (AMPK) regulates metabolism in response to energy demand and supply. AMPK is activated in response to rises in intracellular AMP or calcium-mediated signalling and is responsible for phosphorylating a wide variety of substrates. Recent structural studies have revealed the architecture of the alpha beta gamma subunit interactions as well as the AMP binding pockets on the gamma subunit. The alpha catalytic domain (1-280) is autoinhibited by a C-terminal tail (313-335), which is proposed to interact with the small lobe of the catalytic domain by homology modelling with the MARK2 protein structure. Two direct activating drugs have been reported for AMPK, the thienopyridone compound A769662 and PTI, which may activate by distinct mechanisms.
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