4OMT

Crystal structure of human muscle phosphofructokinase (dissociated homodimer)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 6 Å
  • R-Value Free: 0.274 
  • R-Value Work: 0.238 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Crystallization and preliminary crystallographic analysis of human muscle phosphofructokinase, the main regulator of glycolysis.

Kloos, M.Bruser, A.Kirchberger, J.Schoneberg, T.Strater, N.

(2014) Acta Crystallogr F Struct Biol Commun 70: 578-582

  • DOI: 10.1107/S2053230X14008723
  • Also Cited By: 4WL0, 4XZ2, 4U1R

  • PubMed Abstract: 
  • Whereas the three-dimensional structure and the structural basis of the allosteric regulation of prokaryotic 6-phosphofructokinases (Pfks) have been studied in great detail, knowledge of the molecular basis of the allosteric behaviour of the far more ...

    Whereas the three-dimensional structure and the structural basis of the allosteric regulation of prokaryotic 6-phosphofructokinases (Pfks) have been studied in great detail, knowledge of the molecular basis of the allosteric behaviour of the far more complex mammalian Pfks is still very limited. The human muscle isozyme was expressed heterologously in yeast cells and purified using a five-step purification protocol. Protein crystals suitable for diffraction experiments were obtained by the vapour-diffusion method. The crystals belonged to space group P6222 and diffracted to 6.0 Å resolution. The 3.2 Å resolution structure of rabbit muscle Pfk (rmPfk) was placed into the asymmetric unit and optimized by rigid-body and group B-factor refinement. Interestingly, the tetrameric enzyme dissociated into a dimer, similar to the situation observed in the structure of rmPfk.


    Organizational Affiliation

    Institute of Bioanalytical Chemistry, Center for Biotechnology and Biomedicine, University of Leipzig, Deutscher Platz 5, 04103 Leipzig, Germany.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
6-phosphofructokinase, muscle type
A
780Homo sapiensMutation(s): 0 
Gene Names: PFKM (PFKX)
EC: 2.7.1.11
Find proteins for P08237 (Homo sapiens)
Go to Gene View: PFKM
Go to UniProtKB:  P08237
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 6 Å
  • R-Value Free: 0.274 
  • R-Value Work: 0.238 
  • Space Group: P 62 2 2
Unit Cell:
Length (Å)Angle (°)
a = 229.700α = 90.00
b = 229.700β = 90.00
c = 133.000γ = 120.00
Software Package:
Software NamePurpose
PHASERphasing
XDSdata reduction
PHENIXrefinement
MxCuBEdata collection
REFMACrefinement
Aimlessdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2014-05-14
    Type: Initial release
  • Version 1.1: 2014-09-24
    Type: Database references
  • Version 1.2: 2014-12-10
    Type: Structure summary