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Literature summary for 2.7.11.31 extracted from

  • Chen, L.; Jiao, Z.H.; Zheng, L.S.; Zhang, Y.Y.; Xie, S.T.; Wang, Z.X.; Wu, J.W.
    Structural insight into the autoinhibition mechanism of AMP-activated protein kinase (2009), Nature, 459, 1146-1149.
    View publication on PubMed

Activating Compound

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(Commentary)

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 (Commentary)

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

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

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

Organism UniProt Comment Textmining
Rattus norvegicus
-
-
-
Saccharomyces cerevisiae
-
-
-
Schizosaccharomyces pombe
-
-
-

Purification (Commentary)

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

Storage Stability Organism
-80°C, glycerol Rattus norvegicus
-80°C, glycerol Saccharomyces cerevisiae
-80°C, glycerol Schizosaccharomyces pombe

Subunits

Subunits Comment Organism
heterotrimer wild-type Rattus norvegicus

Synonyms

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