Activating Compound | Comment | Organism | Structure |
---|---|---|---|
AMP | wild-type is activated about 2fold in the presence of 0.2 mM. The catalytic activity and substrate binding affinity of AMPK are separately regulated by AMP binding and the assembly of beta- and gamma-subunits onto the alpha-subunit | Rattus norvegicus | |
CaMKKbeta | phosphorylates | Rattus norvegicus | |
CaMKKbeta | phosphorylates | Saccharomyces cerevisiae | |
CaMKKbeta | phosphorylates | Schizosaccharomyces pombe | |
additional information | hydrophobic contacts between the kinase domain and the autoinhibitory domain have a predominant role in controlling the conformational change between low- and high activity forms of AMPK | Schizosaccharomyces pombe |
Cloned (Comment) | Organism |
---|---|
kinase domain and catalytic kinase domain/autoinhibitory domain fragments of AMPK alpha-subunit. AMPK holoenzyme expressed in a tricistronic vector | Rattus norvegicus |
kinase domain and kinase domain/autoinhibitory domain fragments of AMPK alpha-subunit | Saccharomyces cerevisiae |
kinase domain and kinase domain/autoinhibitory domain fragments of AMPK alpha-subunit | Schizosaccharomyces pombe |
Crystallization (Comment) | Organism |
---|---|
crystals grown by mixing proteins with ammonium formate. Crystal structure of phosphorylated kinase domain, to 2.9 A resolution. Phosphorylated kinase domain displays a closed conformation | Saccharomyces cerevisiae |
crystals grown by mixing proteins with ammonium sulphate. Crystal structure of an unphosphorylated fragment of the AMPK alpha-subunit that contains both the catalytic kinase domain and an autoinhibitory domain, to 2.8 A resolution. The unphosphorylated kinase domain of catalytic kinase domain/autoinhibitory domain fragment adopts an open inactive conformation. Kinase domain/autoinhibitory domain is jammed into its active site, and the critical catalytic residues make several intra- and intermolecular contacts | Schizosaccharomyces pombe |
Protein Variants | Comment | Organism |
---|---|---|
D329K | catalytic kinase domain/autoinhibitory domain mutant, shows enhanced specific activity | Rattus norvegicus |
E344K | mutation in the autoinhibitory domain, disruption of the hydrophilic interactions, yields a modest but marked increase in basal activity | Schizosaccharomyces pombe |
F300E | catalytic kinase domain/autoinhibitory domain mutant, shows enhanced specific activity | Rattus norvegicus |
I327D | catalytic kinase domain/autoinhibitory domain mutant, shows enhanced specific activity | Rattus norvegicus |
L312D | mutation in the autoinhibitory domain, leads to marked enzymatic activation | Schizosaccharomyces pombe |
L326D | catalytic kinase domain/autoinhibitory domain mutant, shows enhanced specific activity | Rattus norvegicus |
L341D | mutation in the autoinhibitory domain, catalytic efficiency is increased approximately 10fold, comparable to that of the wild-type kinase domain | Schizosaccharomyces pombe |
L342D | mutation in the autoinhibitory domain, catalytic efficiency is increased approximately 10fold, comparable to that of the wild-type kinase domain | Schizosaccharomyces pombe |
L88A | mutation in the kinase domain, has decreased catalytic activity | Schizosaccharomyces pombe |
M316E | mutation in the autoinhibitory domain, catalytic efficiency is increased approximately 10fold, comparable to that of the wild-type kinase domain | Schizosaccharomyces pombe |
N330A | catalytic kinase domain/autoinhibitory domain mutant, shows little or no effect on specific activity | Rattus norvegicus |
N345A | mutation in the autoinhibitory domain, has little effect | Schizosaccharomyces pombe |
R149E | mutation in the kinase domain, has decreased catalytic activity | Schizosaccharomyces pombe |
R263A | catalytic kinase domain/autoinhibitory domain mutant, shows little or no effect on specific activity | Rattus norvegicus |
R280A | mutation in the autoinhibitory domain, has no effect on kinase activity | Schizosaccharomyces pombe |
V296D | catalytic kinase domain/autoinhibitory domain mutant, shows enhanced specific activity | Rattus norvegicus |
Inhibitors | Comment | Organism | Structure |
---|---|---|---|
additional information | autoinhibition of AMPK by the autoinhibitory domain. The autoinhibitory domain in the holoenzyme has a bona fide inhibiting role in the rate of phosphoryl transfer (kcat) as it does in the catalytic kinase domain/autoinhibitory domain fragments | Rattus norvegicus | |
additional information | kinase domain/autoinhibitory domain fragment is inactive in the unphosphorylated state, and exhibits low basal kinase activities when phosphorylated at residue Thr 210 | Saccharomyces cerevisiae | |
additional information | kinase domain/autoinhibitory domain fragment is inactive in the unphosphorylated state, and exhibits low basal kinase activities when phosphorylated at residue Thr 189 | Schizosaccharomyces pombe |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Rattus norvegicus | - |
- |
- |
Saccharomyces cerevisiae | - |
- |
- |
Schizosaccharomyces pombe | - |
- |
- |
Purification (Comment) | Organism |
---|---|
kinase domain and catalytic kinase domain/autoinhibitory domain fragments of AMPK alpha-subunit | Rattus norvegicus |
kinase domain and kinase domain/autoinhibitory domain fragments of AMPK alpha-subunit | Schizosaccharomyces pombe |
kinase domain and kinase domain/autoinhibitory fragments of AMPK alpha-subunit | Saccharomyces cerevisiae |
Storage Stability | Organism |
---|---|
-80°C, glycerol | Rattus norvegicus |
-80°C, glycerol | Saccharomyces cerevisiae |
-80°C, glycerol | Schizosaccharomyces pombe |
Subunits | Comment | Organism |
---|---|---|
heterotrimer | wild-type | Rattus norvegicus |
Synonyms | Comment | Organism |
---|---|---|
AMP-activated protein kinase | - |
Rattus norvegicus |
AMP-activated protein kinase | - |
Saccharomyces cerevisiae |
AMP-activated protein kinase | - |
Schizosaccharomyces pombe |
AMPK | - |
Rattus norvegicus |
AMPK | - |
Saccharomyces cerevisiae |
AMPK | - |
Schizosaccharomyces pombe |
PRKAA1 | - |
Rattus norvegicus |
Snf1 | - |
Saccharomyces cerevisiae |