3MN3

An inhibited conformation for the protein kinase domain of the Saccharomyces cerevisiae AMPK homolog Snf1


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.38 Å
  • R-Value Free: 0.246 
  • R-Value Work: 0.230 
  • R-Value Observed: 0.231 

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This is version 1.1 of the entry. See complete history


Literature

An inhibited conformation for the protein kinase domain of the Saccharomyces cerevisiae AMPK homolog Snf1.

Rudolph, M.J.Amodeo, G.A.Tong, L.

(2010) Acta Crystallogr Sect F Struct Biol Cryst Commun 66: 999-1002

  • DOI: 10.1107/S1744309110028265
  • Primary Citation of Related Structures:  
    3MN3

  • PubMed Abstract: 
  • AMP-activated protein kinase (AMPK) is a master metabolic regulator for controlling cellular energy homeostasis. Its homolog in yeast, SNF1, is activated in response to glucose depletion and other stresses. The catalytic (alpha) subunit of AMPK/SNF1 ...

    AMP-activated protein kinase (AMPK) is a master metabolic regulator for controlling cellular energy homeostasis. Its homolog in yeast, SNF1, is activated in response to glucose depletion and other stresses. The catalytic (alpha) subunit of AMPK/SNF1 in yeast (Snf1) contains a protein Ser/Thr kinase domain (KD), an auto-inhibitory domain (AID) and a region that mediates interactions with the two regulatory (beta and gamma) subunits. Here, the crystal structure of residues 41-440 of Snf1, which include the KD and AID, is reported at 2.4 A resolution. The AID is completely disordered in the crystal. A new inhibited conformation of the KD is observed in a DFG-out conformation and with the glycine-rich loop adopting a structure that blocks ATP binding to the active site.


    Organizational Affiliation

    Department of Biological Sciences, Columbia University, New York, NY 10027, USA.



Macromolecules
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Carbon catabolite-derepressing protein kinaseA271Saccharomyces cerevisiaeMutation(s): 0 
Gene Names: SNF1CAT1CCR1GLC2PAS14YDR477WD8035.20
EC: 2.7.11.1
Find proteins for P06782 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Explore P06782 
Go to UniProtKB:  P06782
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.38 Å
  • R-Value Free: 0.246 
  • R-Value Work: 0.230 
  • R-Value Observed: 0.231 
  • Space Group: I 41 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 76.981α = 90
b = 76.981β = 90
c = 286.215γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
PDB_EXTRACTdata extraction
MAR345dtbdata collection
DENZOdata reduction
SCALEPACKdata scaling
COMOphasing

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2010-09-15
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance