1JNR

Structure of adenylylsulfate reductase from the hyperthermophilic Archaeoglobus fulgidus at 1.6 resolution


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.60 Å
  • R-Value Free: 0.202 
  • R-Value Work: 0.180 
  • R-Value Observed: 0.180 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Structure of adenylylsulfate reductase from the hyperthermophilic Archaeoglobus fulgidus at 1.6-A resolution

Fritz, G.Roth, A.Schiffer, A.Buchert, T.Bourenkov, G.Bartunik, H.D.Huber, H.Stetter, K.O.Kroneck, P.M.Ermler, U.

(2002) Proc Natl Acad Sci U S A 99: 1836-1841

  • DOI: 10.1073/pnas.042664399
  • Primary Citation of Related Structures:  
    1JNR, 1JNZ

  • PubMed Abstract: 
  • The iron-sulfur flavoenzyme adenylylsulfate (adenosine 5'-phosphosulfate, APS) reductase catalyzes reversibly the reduction of APS to sulfite and AMP. The structures of APS reductase from the hyperthermophilic Archaeoglobus fulgidus in the two-electron reduced state and with sulfite bound to FAD are reported at 1 ...

    The iron-sulfur flavoenzyme adenylylsulfate (adenosine 5'-phosphosulfate, APS) reductase catalyzes reversibly the reduction of APS to sulfite and AMP. The structures of APS reductase from the hyperthermophilic Archaeoglobus fulgidus in the two-electron reduced state and with sulfite bound to FAD are reported at 1.6- and 2.5- resolution, respectively. The FAD-sulfite adduct was detected after soaking the crystals with APS. This finding and the architecture of the active site strongly suggest that catalysis involves a nucleophilic attack of the N5 atom of reduced FAD on the sulfur atom of APS. In view of the high degree of similarity between APS reductase and fumarate reductase especially with regard to the FAD-binding alpha-subunit, it is proposed that both subunits originate from a common ancestor resembling archaeal APS reductase. The two electrons required for APS reduction are transferred via two [4Fe-4S] clusters from the surface of the protein to FAD. The exceptionally large difference in reduction potential of these clusters (-60 and -500 mV) can be explained by interactions of the clusters with the protein matrix.


    Related Citations: 
    • Crystallization and preliminary X-ray analysis of adenylylsulfate reductase from Archaeoglobus fulgidus
      Roth, A., Fritz, G., Buechert, T., Huber, H., Stetter, K.O., Ermler, U., Kroneck, P.M.H.
      (2000) Acta Crystallogr D Biol Crystallogr 56: 1673

    Organizational Affiliation

    Fachbereich Biologie, Mathematisch-Naturwissenschaftliche Sektion, Universität Konstanz, Fach M665, D-78457 Konstanz, Germany.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
adenylylsulfate reductaseA, C643Archaeoglobus fulgidus DSM 4304Mutation(s): 0 
Gene Names: AF_1670
EC: 1.8.99.2
Find proteins for O28603 (Archaeoglobus fulgidus (strain ATCC 49558 / VC-16 / DSM 4304 / JCM 9628 / NBRC 100126))
Explore O28603 
Go to UniProtKB:  O28603
Protein Feature View
Expand
  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
adenylylsulfate reductaseB, D150Archaeoglobus fulgidus DSM 4304Mutation(s): 0 
Gene Names: AF_1669
EC: 1.8.99.2
Find proteins for O28604 (Archaeoglobus fulgidus (strain ATCC 49558 / VC-16 / DSM 4304 / JCM 9628 / NBRC 100126))
Explore O28604 
Go to UniProtKB:  O28604
Protein Feature View
Expand
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.60 Å
  • R-Value Free: 0.202 
  • R-Value Work: 0.180 
  • R-Value Observed: 0.180 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 72.6α = 90
b = 113.5β = 90
c = 193.9γ = 90
Software Package:
Software NamePurpose
SHELXSphasing
MLPHAREphasing
SHARPphasing
DMmodel building
CNSrefinement
DENZOdata reduction
SCALEPACKdata scaling
DMphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2002-02-27
    Type: Initial release
  • Version 1.1: 2008-04-27
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Non-polymer description, Version format compliance
  • Version 1.3: 2017-10-04
    Changes: Refinement description