5XOE

Crystal Structure of the apo Staphylococcus aureus phosphofructokinase


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.98 Å
  • R-Value Free: 0.311 
  • R-Value Work: 0.233 
  • R-Value Observed: 0.236 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Structural Insights into the Regulation of Staphylococcus aureus Phosphofructokinase by Tetramer-Dimer Conversion.

Tian, T.Wang, C.Wu, M.Zhang, X.Zang, J.

(2018) Biochemistry 57: 4252-4262

  • DOI: 10.1021/acs.biochem.8b00028
  • Primary Citation of Related Structures:  
    5XOE, 5XZ6, 5XZA, 5XZ8, 5XZ7, 5XZ9

  • PubMed Abstract: 
  • Most reported bacterial phosphofructokinases (Pfks) are tetramers that exhibit activity allosterically regulated via conformational changes between the R and T states. We report that the Pfk from Staphylococcus aureus NCTC 8325 ( SaPfk) exists as bot ...

    Most reported bacterial phosphofructokinases (Pfks) are tetramers that exhibit activity allosterically regulated via conformational changes between the R and T states. We report that the Pfk from Staphylococcus aureus NCTC 8325 ( SaPfk) exists as both an active tetramer and an inactive dimer in solution. Multiple effectors, including pH, ADP, ATP, and adenylyl-imidodiphosphate (AMP-PNP), cause equilibrium shifts from the tetramer to dimer, whereas the substrate F6P stabilizes SaPfk tetrameric assembly. Crystal structures of SaPfk in complex with different ligands and biochemical analysis reveal that the flexibility of the Gly150-Leu151 motif in helix α7 plays a role in tetramer-dimer conversion. Thus, we propose a molecular mechanism for allosteric regulation of bacterial Pfk via conversion between the tetramer and dimer in addition to the well-characterized R-state/T-state mechanism.


    Organizational Affiliation

    Key Laboratory of Structural Biology , Chinese Academy of Sciences , Hefei , Anhui 230026 , China.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
ATP-dependent 6-phosphofructokinaseA322Staphylococcus aureus subsp. aureus NCTC 8325Mutation(s): 0 
Gene Names: pfkASAOUHSC_01807
EC: 2.7.1.11
Find proteins for Q2YTE2 (Staphylococcus aureus (strain bovine RF122 / ET3-1))
Explore Q2YTE2 
Go to UniProtKB:  Q2YTE2
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.98 Å
  • R-Value Free: 0.311 
  • R-Value Work: 0.233 
  • R-Value Observed: 0.236 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 116.23α = 90
b = 36.949β = 123.3
c = 87.81γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
HKL-2000data reduction
HKL-2000data scaling
PHASERphasing

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2018-06-20
    Type: Initial release
  • Version 1.1: 2019-02-27
    Changes: Data collection, Database references
  • Version 1.2: 2019-05-22
    Changes: Data collection, Database references, Source and taxonomy