Experimental Data Snapshot

  • Resolution: 2.40 Å
  • R-Value Observed: 0.169 

wwPDB Validation   3D Report Full Report

Ligand Structure Quality Assessment 

This is version 1.5 of the entry. See complete history


Phosphofructokinase: structure and control.

Evans, P.R.Farrants, G.W.Hudson, P.J.

(1981) Philos Trans R Soc London,ser B 293: 53-62

  • DOI: https://doi.org/10.1098/rstb.1981.0059
  • Primary Citation of Related Structures:  
    3PFK, 4PFK

  • PubMed Abstract: 

    Phosphofructokinase from Bacillus stearothermophilus shows cooperative kinetics with respect to the substrate fructose-6-phosphate (F6P), allosteric activation by ADP, and inhibition by phosphoenolpyruvate. The crystal structure of the active conformation of the enzyme has been solved to 2.4 A resolution, and three ligand-binding sites have been located. Two of these form the active site and bind the substrates F6P and ATP. The third site binds both allosteric activator and inhibitor. The complex of the enzyme with F6P and ADP has been partly refined at 2.4 A resolution, and a model of ATP has been built into the active site by using the refined model of ADP and a 6 A resolution map of bound 5'-adenylylimidodiphosphate (AMPPNP). The gamma-phosphate of ATP is close to the 1-hydroxyl of F6P, in a suitable position for in-line phosphoryl transfer. The binding of the phosphate of F6P involves two arginines from a neighbouring subunit in the tetramer, which suggests that a rearrangement of the subunits could explain the cooperativity of substrate binding. The activatory ADP is also bound by residues from two subunits.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
PHOSPHOFRUCTOKINASE319Geobacillus stearothermophilusMutation(s): 0 
Find proteins for P00512 (Geobacillus stearothermophilus)
Explore P00512 
Go to UniProtKB:  P00512
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP00512
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 2.40 Å
  • R-Value Observed: 0.169 
  • Space Group: I 2 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 122.5α = 90
b = 84.1β = 90
c = 61.5γ = 90
Software Package:
Software NamePurpose

Structure Validation

View Full Validation Report

Ligand Structure Quality Assessment 

Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1989-01-09
    Type: Initial release
  • Version 1.1: 2008-03-25
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Derived calculations, Version format compliance
  • Version 1.3: 2011-11-16
    Changes: Atomic model
  • Version 1.4: 2020-07-29
    Type: Remediation
    Reason: Carbohydrate remediation
    Changes: Data collection, Database references, Derived calculations, Other, Structure summary
  • Version 1.5: 2024-02-28
    Changes: Data collection, Database references, Structure summary