6PFK | pdb_00006pfk

PHOSPHOFRUCTOKINASE, INHIBITED T-STATE

• PDB DOI: https://doi.org/10.2210/pdb6PFK/pdb
• Entry: 6PFK supersedes: 5PFK

• Classification: TRANSFERASE
• Organism(s): Geobacillus stearothermophilus
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 1996-01-04 Released: 1996-07-11 
• Deposition Author(s): Evans, P.R., Schirmer, T., Auer, M.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.60 Å
• R-Value Free: 
  0.255 (Depositor), 0.222 (DCC) 
• R-Value Work: 
  0.188 (Depositor), 0.160 (DCC) 

Literature

Structural basis of the allosteric behaviour of phosphofructokinase.

Schirmer, T., Evans, P.R.

(1990) Nature 343: 140-145

• PubMed: 2136935 
• DOI: https://doi.org/10.1038/343140a0
• Primary Citation Related Structures: 
  6PFK


• PubMed Abstract: 
  

  Comparison between the crystal structures of low- and high-affinity forms of phosphofructokinase shows a close coupling between the change of quaternary structure and local changes triggered by binding of the allosteric effectors. These concerted changes link all the substrate and effector sites in the tetramer, and explain the change of affinity for the cooperative substrate.

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Organizational Affiliation: 
• MRC Laboratory of Molecular Biology, Cambridge, UK.

Biological Assembly 1  

Global Symmetry: Dihedral - D2  (Explore in 3D)
Global Stoichiometry: Homo 4-mer - A4 

Biological assembly 1 assigned by authors and generated by PISA (software)

Macromolecule Content 

• Total Structure Weight: 137.3 kDa 
• Atom Count: 9,681 
• Modeled Residue Count: 1,276 
• Deposited Residue Count: 1,276 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
PHOSPHOFRUCTOKINASE	A, B, C, D	319	Geobacillus stearothermophilus	Mutation(s): 0  Gene Names: PFK EC: 2.7.1.11
UniProt
Find proteins for P00512 (Geobacillus stearothermophilus) Explore P00512  Go to UniProtKB:  P00512

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
PGA	E [auth A], F [auth B], G [auth C], H [auth D]	2-PHOSPHOGLYCOLIC ACID C2 H5 O6 P ASCFNMCAHFUBCO-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.60 Å
• R-Value Free:  0.255 (Depositor), 0.222 (DCC) 
• R-Value Work:  0.188 (Depositor), 0.160 (DCC) 

Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 132	α = 90
b = 115.2	β = 90
c = 96.2	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
MOSFLM	data reduction

Structure Validation

Entry History 

Deposition Data

• Released Date: 1996-07-11 
Deposition Author(s): Evans, P.R., Schirmer, T., Auer, M.
• This entry supersedes: 5PFK

Revision History  

• Version 1.0: 1996-07-11
  Type: Initial release
  
• Version 1.1: 2008-03-25
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2011-08-10
  Changes: Other
• Version 1.4: 2024-03-13
  Changes: Data collection, Database references, Derived calculations, Other