4Q75

Crystal structure of Nfs2, the plastidial cysteine desulfurase from Arabidopsis thaliana


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.709 Å
  • R-Value Free: 0.233 
  • R-Value Work: 0.203 

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This is version 1.1 of the entry. See complete history

Literature

X-ray structures of Nfs2, the plastidial cysteine desulfurase from Arabidopsis thaliana.

Roret, T.Pegeot, H.Couturier, J.Mulliert, G.Rouhier, N.Didierjean, C.

(2014) Acta Crystallogr F Struct Biol Commun 70: 1180-1185

  • DOI: 10.1107/S2053230X14017026
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • The chloroplastic Arabidopsis thaliana Nfs2 (AtNfs2) is a group II pyridoxal 5'-phosphate-dependent cysteine desulfurase that is involved in the initial steps of iron-sulfur cluster biogenesis. The group II cysteine desulfurases require the presence ...

    The chloroplastic Arabidopsis thaliana Nfs2 (AtNfs2) is a group II pyridoxal 5'-phosphate-dependent cysteine desulfurase that is involved in the initial steps of iron-sulfur cluster biogenesis. The group II cysteine desulfurases require the presence of sulfurtransferases such as SufE proteins for optimal activity. Compared with group I cysteine desulfurases, proteins of this group contains a smaller extended lobe harbouring the catalytic cysteine and have a β-hairpin constraining the active site. Here, two crystal structures of AtNfs2 are reported: a wild-type form with the catalytic cysteine in a persulfide-intermediate state and a C384S variant mimicking the resting state of the enzyme. In both structures the well conserved Lys241 covalently binds pyridoxal 5'-phosphate, forming an internal aldimine. Based on available homologous bacterial complexes, a model of a complex between AtNfs2 and the SufE domain of its biological partner AtSufE1 is proposed, revealing the nature of the binding sites.


    Organizational Affiliation

    Université de Lorraine, UMR 1136 Interactions Arbres Microorganismes, 54500 Vandoeuvre-lès-Nancy, France.,Université de Lorraine, UMR 7036 CRM2, BioMod Group, BP 70239, 54506 Vandoeuvre-lès-Nancy, France.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Cysteine desulfurase 2, chloroplastic
A, B
429Arabidopsis thalianaMutation(s): 0 
Gene Names: NFS2 (CpNIFS, CpNIFS1)
EC: 2.8.1.7
Find proteins for Q93WX6 (Arabidopsis thaliana)
Go to UniProtKB:  Q93WX6
Small Molecules
Modified Residues  2 Unique
IDChainsTypeFormula2D DiagramParent
CSS
Query on CSS
A, B
L-PEPTIDE LINKINGC3 H7 N O2 S2CYS
LLP
Query on LLP
A, B
L-PEPTIDE LINKINGC14 H22 N3 O7 PLYS
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.709 Å
  • R-Value Free: 0.233 
  • R-Value Work: 0.203 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 81.567α = 90.00
b = 68.205β = 94.76
c = 87.066γ = 90.00
Software Package:
Software NamePurpose
SCALAdata scaling
Xnemodata collection
PHENIXrefinement
XDSdata reduction
MOLREPphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2014-09-10
    Type: Initial release
  • Version 1.1: 2014-09-24
    Type: Database references