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Literature summary for 2.7.11.31 extracted from

  • Oakhill, J.S.; Scott, J.W.; Kemp, B.E.
    Structure and function of AMP-activated protein kinase (2009), Acta Physiol. (Oxf.), 196, 3-14.
    View publication on PubMed

Activating Compound

Activating Compound Comment Organism Structure
additional information ADP does not directly control AMPK activity but can do so indirectly through the adenylate kinase equilibrium with AMP and ATP Mus musculus
additional information AMP does not activate the SNF1 complex Saccharomyces cerevisiae

Application

Application Comment Organism
drug development AMPK is regarded as one of the most promising targets for new drugs to treat the growing incidence of metabolic diseases such as obesity and type 2 diabetes and cardiovascular disease Mus musculus
drug development AMPK is regarded as one of the most promising targets for new drugs to treat the growing incidence of metabolic diseases such as obesity and type 2 diabetes and cardiovascular disease Homo sapiens
drug development AMPK is regarded as one of the most promising targets for new drugs to treat the growing incidence of metabolic diseases such as obesity and type 2 diabetes and cardiovascular disease Rattus norvegicus
drug development AMPK is regarded as one of the most promising targets for new drugs to treat the growing incidence of metabolic diseases such as obesity and type 2 diabetes and cardiovascular disease Sus scrofa

Crystallization (Commentary)

Crystallization (Comment) Organism
crystal structure of AMPK beta1 subunit-carbohydrate-binding module in complex with the cyclic sugar beta-cyclodextrin shows that the domain consists of a beta-hairpin loop extending from a beta-sandwich containing two anti-parallel beta-sheets. The sugar ring is held in position by the beta-hairpin loop, which protrudes the ring with Leu-146 at its centre. Within the sugarbinding pocket an extensive network of hydrophobic stacking interactions, mediated by Trp100 and Trp133, and carbohydrate-protein hydrogen bonds are formed with five of the seven glucose units. Although Leu-146 is prominent in the beta7-beta8 hairpin and interacts extensively with beta-cyclodextrin, it is not essential for glycogen binding Rattus norvegicus
crystal structure of the inactive, apo-form of AMPK alpha2 subunit N-terminal kinase catalytic domain (KCD, residues 10-278 inclusive), shows that it adopts a canonical bilobal structure with the active site forming a cleft between the two lobes. The small N-terminal lobe (residues 1-97) is composed of a five-stranded beta-sheet (beta1-beta5), with an alpha-helix (termed the C-helix) positioned between strands beta3 and beta4 and lying to one side of the beta sheet. Glu-64 within the C-helix is important for aligning the phosphates of ATP in the correct orientation for catalysis. A Gly-X-Gly-X-X-Gly P-loop motif connecting strands beta1 and beta2 is evident in the structure. This interacts with the beta phosphate group of ATP when the active site is occupied. The larger C-terminal lobe is predominantly (63%) alpha-helical (alphaD-alphaI) and contains determinants and structural features that dictate protein substrate binding. The two lobes are connected via a short, flexible hinge region that allows rotation of the two lobes relative to each other Homo sapiens
crystal structures for full-length Snf4 Saccharomyces cerevisiae
crystal structures for full-length Snf4. In the subunit crystal structure ADP can be co-crystallized and occupies site 2, the unoccupied site present in mammalian gamma1 Schizosaccharomyces pombe

Inhibitors

Inhibitors Comment Organism Structure
additional information contraction in skeletal muscle in adenylate kinase null mice reduces AMPK activation due to lack of conversion of ADP to AMP Mus musculus

Localization

Localization Comment Organism GeneOntology No. Textmining
cytoplasm Gal83 directs Snf1 to the cytoplasm Saccharomyces cerevisiae 5737
-
nucleus Sip1 directs Snf1 to the nucleus Saccharomyces cerevisiae 5634
-
vacuole Sip2 directs Snf1 to the vacuole Saccharomyces cerevisiae 5773
-

Metals/Ions

Metals/Ions Comment Organism Structure
Mg2+ Asp-157 within the DFG motif is required for binding the Mg2+ ion that co-ordinates beta and gamma phosphates of Mg2+-ATP in the active site Homo sapiens

Organism

Organism UniProt Comment Textmining
Homo sapiens
-
-
-
Mus musculus
-
-
-
Rattus norvegicus
-
-
-
Saccharomyces cerevisiae
-
-
-
Schizosaccharomyces pombe
-
-
-
Sus scrofa
-
-
-

Source Tissue

Source Tissue Comment Organism Textmining
liver
-
Mus musculus
-
skeletal muscle
-
Mus musculus
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
additional information Snf4 subunit contains cystathionine-beta-synthase (CBS) sequence repeats. CBS4 can be occupied either by AMP, ZMP or ATP, and CBS2 by ADP Schizosaccharomyces pombe ?
-
?

Subunits

Subunits Comment Organism
heterotrimer
-
Saccharomyces cerevisiae

Synonyms

Synonyms Comment Organism
AMP-activated protein kinase
-
Mus musculus
AMP-activated protein kinase
-
Homo sapiens
AMP-activated protein kinase
-
Rattus norvegicus
AMP-activated protein kinase
-
Sus scrofa
AMPK
-
Mus musculus
AMPK
-
Homo sapiens
AMPK
-
Rattus norvegicus
AMPK
-
Sus scrofa
Snf1 homologue of mammalian AMPK catalytic alpha subunit Saccharomyces cerevisiae
Snf1 homologue of mammalian AMPK catalytic alpha subunit Schizosaccharomyces pombe
SNF4 homologue of mammalian AMPK catalytic gamma1 subunit Saccharomyces cerevisiae
SNF4 homologue of mammalian AMPK catalytic gamma1 subunit Schizosaccharomyces pombe

Cofactor

Cofactor Comment Organism Structure
ATP
-
Homo sapiens

General Information

General Information Comment Organism
malfunction in the liver from beta1 knockout mice the gamma1 subunit is present but alpha1 and alpha2 are degraded Mus musculus
malfunction mutations in the gamma2 and gamma3 subunits result in glycogen storage disease Sus scrofa
malfunction mutations in the gamma2 and gamma3 subunits result in glycogen storage disease. Ten point mutations in gamma2 are associated with a glycogen storage cardiomyopathy and ventricular pre-excitation Homo sapiens
metabolism is a key regulator of cellular and whole-body energy homeostasis that co-ordinates metabolic pathways in order to balance nutrient supply with energy demand Mus musculus
metabolism is a key regulator of cellular and whole-body energy homeostasis that co-ordinates metabolic pathways in order to balance nutrient supply with energy demand Homo sapiens
metabolism is a key regulator of cellular and whole-body energy homeostasis that co-ordinates metabolic pathways in order to balance nutrient supply with energy demand Rattus norvegicus
metabolism is a key regulator of cellular and whole-body energy homeostasis that co-ordinates metabolic pathways in order to balance nutrient supply with energy demand Sus scrofa
metabolism SNF1 protein kinase cascade, sharing functional similarities with mammalian AMPK, which plays an important role in adapting the unicellular eukaryote to glucose starvation Saccharomyces cerevisiae