5A5L

Structure of dual function FBPase SBPase from Thermosynechococcus elongatus


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.34 Å
  • R-Value Free: 0.224 
  • R-Value Work: 0.166 

wwPDB Validation 3D Report Full Report


This is version 2.0 of the entry. See complete history

Literature

Structure of the Dual-Function Fructose-1,6/Sedoheptulose-1, 7-Bisphosphatase from Thermosynechococcus Elongatus Bound with Sedoheptulose-7-Phosphate.

Cotton, C.A.R.Kabasakal, B.Miah, N.Murray, J.W.

(2015) Acta Crystallogr.,Sect.F 71: 1341

  • DOI: 10.1107/S2053230X15016829

  • PubMed Abstract: 
  • The dual-function fructose-1,6/sedoheptulose-1,7-bisphosphatase (FBP/SBPase) in cyanobacteria carries out two activities in the Calvin cycle. Structures of this enzyme from the cyanobacterium Synechocystis sp. PCC 6803 exist, but only with adenosine ...

    The dual-function fructose-1,6/sedoheptulose-1,7-bisphosphatase (FBP/SBPase) in cyanobacteria carries out two activities in the Calvin cycle. Structures of this enzyme from the cyanobacterium Synechocystis sp. PCC 6803 exist, but only with adenosine monophosphate (AMP) or fructose-1,6-bisphosphate and AMP bound. The mechanisms which control both selectivity between the two sugars and the structural mechanisms for redox control are still unresolved. Here, the structure of the dual-function FBP/SBPase from the thermophilic cyanobacterium Thermosynechococcus elongatus is presented with sedoheptulose-7-phosphate bound and in the absence of AMP. The structure is globally very similar to the Synechocystis sp. PCC 6803 enzyme, but highlights features of selectivity at the active site and loop ordering at the AMP-binding site. Understanding the selectivity and control of this enzyme is critical for understanding the Calvin cycle in cyanobacteria and for possible biotechnological application in plants.


    Organizational Affiliation

    Department of Life Sciences, Imperial College London, Exhibition Road, London SW7 2AZ, England.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
D-FRUCTOSE 1,6-BISPHOSPHATASE CLASS 2/SEDOHEPTULOSE 1,7-BISPHOSPHATASE
A
364Thermosynechococcus elongatus (strain BP-1)Mutation(s): 0 
EC: 3.1.3.11, 3.1.3.37
Find proteins for Q8DJE9 (Thermosynechococcus elongatus (strain BP-1))
Go to UniProtKB:  Q8DJE9
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
PO4
Query on PO4

Download SDF File 
Download CCD File 
A
PHOSPHATE ION
O4 P
NBIIXXVUZAFLBC-UHFFFAOYSA-K
 Ligand Interaction
MG
Query on MG

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Download CCD File 
A
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
VTB
Query on VTB

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Download CCD File 
A
[(2~{S},3~{S},4~{R},5~{S},6~{R})-6-(hydroxymethyl)-3,4,5,6-tetrakis(oxidanyl)oxan-2-yl]methyl dihydrogen phosphate
C7 H15 O10 P
CBIDVWSRUUODHL-CXNFULCWSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.34 Å
  • R-Value Free: 0.224 
  • R-Value Work: 0.166 
  • Space Group: I 41 2 2
Unit Cell:
Length (Å)Angle (°)
a = 143.090α = 90.00
b = 143.090β = 90.00
c = 76.430γ = 90.00
Software Package:
Software NamePurpose
XDSdata reduction
PHASERphasing
SCALAdata scaling
PHENIXrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2015-10-14
    Type: Initial release
  • Version 1.1: 2015-10-21
    Type: Database references
  • Version 2.0: 2018-11-21
    Type: Atomic model, Data collection, Derived calculations, Structure summary