1DJ7

CRYSTAL STRUCTURE OF FERREDOXIN THIOREDOXIN REDUCTASE


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.60 Å
  • R-Value Free: 0.278 
  • R-Value Work: 0.238 
  • R-Value Observed: 0.264 

wwPDB Validation   3D Report Full Report


This is version 1.4 of the entry. See complete history


Literature

Redox signaling in chloroplasts: cleavage of disulfides by an iron-sulfur cluster.

Dai, S.Schwendtmayer, C.Schurmann, P.Ramaswamy, S.Eklund, H.

(2000) Science 287: 655-658

  • DOI: 10.1126/science.287.5453.655
  • Primary Citation of Related Structures:  
    1DJ7

  • PubMed Abstract: 
  • Light generates reducing equivalents in chloroplasts that are used not only for carbon reduction, but also for the regulation of the activity of chloroplast enzymes by reduction of regulatory disulfides via the ferredoxin:thioredoxin reductase (FTR) system ...

    Light generates reducing equivalents in chloroplasts that are used not only for carbon reduction, but also for the regulation of the activity of chloroplast enzymes by reduction of regulatory disulfides via the ferredoxin:thioredoxin reductase (FTR) system. FTR, the key electron/thiol transducer enzyme in this pathway, is unique in that it can reduce disulfides by an iron-sulfur cluster, a property that is explained by the tight contact of its active-site disulfide and the iron-sulfur center. The thin, flat FTR molecule makes the two-electron reduction possible by forming on one side a mixed disulfide with thioredoxin and by providing on the opposite side access to ferredoxin for delivering electrons.


    Organizational Affiliation

    Department of Molecular Biology, Swedish University of Agricultural Sciences, Box 590, Biomedical Center, S-751 24 Uppsala, Sweden.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
FERREDOXIN THIOREDOXIN REDUCTASE: CATALYTIC CHAINA117Synechocystis sp. PCC 6803Mutation(s): 0 
EC: 1.8.7.2
UniProt
Find proteins for Q55389 (Synechocystis sp. (strain PCC 6803 / Kazusa))
Explore Q55389 
Go to UniProtKB:  Q55389
Protein Feature View
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
FERREDOXIN THIOREDOXIN REDUCTASE: VARIABLE CHAINB75Synechocystis sp. PCC 6803Mutation(s): 0 
UniProt
Find proteins for Q55781 (Synechocystis sp. (strain PCC 6803 / Kazusa))
Explore Q55781 
Go to UniProtKB:  Q55781
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SF4
Query on SF4

Download Ideal Coordinates CCD File 
C [auth A]IRON/SULFUR CLUSTER
Fe4 S4
LJBDFODJNLIPKO-VKOJMFJBAC
 Ligand Interaction
SO4
Query on SO4

Download Ideal Coordinates CCD File 
D [auth B]SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.60 Å
  • R-Value Free: 0.278 
  • R-Value Work: 0.238 
  • R-Value Observed: 0.264 
  • Space Group: P 43 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 45.296α = 90
b = 45.296β = 90
c = 172.147γ = 90
Software Package:
Software NamePurpose
XDSdata scaling
XDSdata reduction
SHARPphasing
REFMACrefinement

Structure Validation

View Full Validation Report




Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2000-02-14
    Type: Initial release
  • Version 1.1: 2008-04-27
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Source and taxonomy, Version format compliance
  • Version 1.3: 2017-10-04
    Changes: Refinement description
  • Version 1.4: 2017-10-11
    Changes: Data collection