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 

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:  

  • 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.,Hefei National Laboratory for Physical Sciences at Microscale CAS Center for Excellence in Biomacromolecules, Collaborative Innovation Center of Chemistry for Life Sciences, and School of Life Sciences , University of Science and Technology of China , 96 Jinzhai Road , Hefei , Anhui 230026 , China.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
ATP-dependent 6-phosphofructokinase
A
322Staphylococcus aureus (strain bovine RF122 / ET3-1)Mutation(s): 0 
Gene Names: pfkA
EC: 2.7.1.11
Find proteins for Q2YTE2 (Staphylococcus aureus (strain bovine RF122 / ET3-1))
Go to UniProtKB:  Q2YTE2
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.98 Å
  • R-Value Free: 0.311 
  • R-Value Work: 0.233 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 116.230α = 90.00
b = 36.949β = 123.30
c = 87.810γ = 90.00
Software Package:
Software NamePurpose
PHASERphasing
REFMACrefinement
HKL-2000data scaling
HKL-2000data reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

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