2V78

Crystal structure of Sulfolobus solfataricus 2-keto-3-deoxygluconate kinase


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.198 
  • R-Value Work: 0.162 
  • R-Value Observed: 0.164 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

The Structure of Sulfolobus Solfataricus 2-Keto-3-Deoxygluconate Kinase.

Potter, J.A.Kerou, M.Lamble, H.J.Bull, S.D.Hough, D.W.Danson, M.J.Taylor, G.L.

(2008) Acta Crystallogr D Biol Crystallogr 64: 1283

  • DOI: 10.1107/S0907444908036111
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • The hyperthermophilic archaeon Sulfolobus solfataricus grows optimally above 353 K and utilizes an unusual promiscuous nonphosphorylative Entner-Doudoroff pathway to metabolize both glucose and galactose. It has been proposed that a part-phosphorylat ...

    The hyperthermophilic archaeon Sulfolobus solfataricus grows optimally above 353 K and utilizes an unusual promiscuous nonphosphorylative Entner-Doudoroff pathway to metabolize both glucose and galactose. It has been proposed that a part-phosphorylative Entner-Doudoroff pathway occurs in parallel in S. solfataricus, in which the 2-keto-3-deoxygluconate kinase (KDGK) is promiscuous for both glucose and galactose metabolism. Recombinant S. solfataricus KDGK protein was expressed in Escherichia coli, purified and crystallized in 0.1 M sodium acetate pH 4.1 and 1.4 M NaCl. The crystal structure of apo S. solfataricus KDGK was solved by molecular replacement to a resolution of 2.0 A and a ternary complex with 2-keto-3-deoxygluconate (KDGlu) and an ATP analogue was resolved at 2.1 A. The complex suggests that the structural basis for the enzyme's ability to phosphorylate KDGlu and 2-keto-3-deoxygalactonate (KDGal) is derived from a subtle repositioning of residues that are conserved in homologous nonpromiscuous kinases.


    Organizational Affiliation

    Centre for Biomolecular Sciences, University of St Andrews, North Haugh, St Andrews, Fife KY16 9ST, Scotland.



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
FRUCTOKINASE
A, B, C
313Saccharolobus solfataricusMutation(s): 0 
EC: 2.7.1.4 (PDB Primary Data), 2.7.1.178 (UniProt)
Find proteins for Q97U29 (Saccharolobus solfataricus (strain ATCC 35092 / DSM 1617 / JCM 11322 / P2))
Go to UniProtKB:  Q97U29
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.198 
  • R-Value Work: 0.162 
  • R-Value Observed: 0.164 
  • Space Group: P 65 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 104.865α = 90
b = 104.865β = 90
c = 422.502γ = 120
Software Package:
Software NamePurpose
REFMACrefinement

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2007-08-07
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Advisory, Version format compliance