5H5J

Complex between ferredoxin and ferredoxin-NADP+ reductase from maize root


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.5 Å
  • R-Value Free: 0.266 
  • R-Value Work: 0.191 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Structural basis for the isotype-specific interactions of ferredoxin and ferredoxin: NADP(+) oxidoreductase: an evolutionary switch between photosynthetic and heterotrophic assimilation

Shinohara, F.Kurisu, G.Hanke, G.Bowsher, C.Hase, T.Kimata-Ariga, Y.

(2017) Photosyn. Res. 134: 281-289

  • DOI: 10.1007/s11120-016-0331-1
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • In higher plants, ferredoxin (Fd) and ferredoxin-NADP+ reductase (FNR) are each present as distinct isoproteins of photosynthetic type (leaf type) and non-photosynthetic type (root type). Root-type Fd and FNR are considered to facilitate the electron ...

    In higher plants, ferredoxin (Fd) and ferredoxin-NADP+ reductase (FNR) are each present as distinct isoproteins of photosynthetic type (leaf type) and non-photosynthetic type (root type). Root-type Fd and FNR are considered to facilitate the electron transfer from NADPH to Fd in the direction opposite to that occurring in the photosynthetic processes. We previously reported the crystal structure of the electron transfer complex between maize leaf FNR and Fd (leaf FNR:Fd complex), providing insights into the molecular interactions of the two proteins. Here we show the 2.49 Å crystal structure of the maize root FNR:Fd complex, which reveals that the orientation of FNR and Fd remarkably varies from that of the leaf FNR:Fd complex, giving a structural basis for reversing the redox path. Root FNR was previously shown to interact preferentially with root Fd over leaf Fd, while leaf FNR retains similar affinity for these two types of Fds. The structural basis for such differential interaction was investigated using site-directed mutagenesis of the isotype-specific amino acid residues on the interface of Fd and FNR, based on the crystal structures of the FNR:Fd complexes from maize leaves and roots. Kinetic and physical binding analyses of the resulting mutants lead to the conclusion that the rearrangement of the charged amino acid residues on the Fd-binding surface of FNR confers isotype-specific interaction with Fd, which brings about the evolutional switch between photosynthetic and heterotrophic redox cascades.


    Related Citations: 
    • Fd : FNR Electron Transfer Complexes: Evolutionary Refinement of Structural Interactions
      Hanke, G.T.,Kurisu, G.,Kusunoki, M.,Hase, T.
      (2004) Photosyn. Res. 81: 317


    Organizational Affiliation

    Division of Enzymology and Institute for Protein Research, Osaka University, Suita, Osaka, 565-0871, Japan.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Ferredoxin--NADP reductase
A, C
309Zea maysMutation(s): 0 
Gene Names: 542713
EC: 1.18.1.2
Find proteins for B4G043 (Zea mays)
Go to UniProtKB:  B4G043
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Ferredoxin-3, chloroplastic
B
97Zea maysMutation(s): 0 
Gene Names: FDX3 (PFD3)
Find proteins for P27788 (Zea mays)
Go to UniProtKB:  P27788
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
FAD
Query on FAD

Download SDF File 
Download CCD File 
A, C
FLAVIN-ADENINE DINUCLEOTIDE
C27 H33 N9 O15 P2
VWWQXMAJTJZDQX-UYBVJOGSSA-N
 Ligand Interaction
FES
Query on FES

Download SDF File 
Download CCD File 
B
FE2/S2 (INORGANIC) CLUSTER
Fe2 S2
NIXDOXVAJZFRNF-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.5 Å
  • R-Value Free: 0.266 
  • R-Value Work: 0.191 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 52.718α = 90.00
b = 126.576β = 114.82
c = 59.367γ = 90.00
Software Package:
Software NamePurpose
SCALEPACKdata scaling
CNSrefinement
AMoREphasing
HKL-2000data reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data

  • Deposited Date: 2016-11-05 
  • Released Date: 2017-02-01 
  • Deposition Author(s): Kurisu, G., Hase, T.

Funding OrganizationLocationGrant Number
JST-CRESTJapan--

Revision History 

  • Version 1.0: 2017-02-01
    Type: Initial release
  • Version 1.1: 2017-11-22
    Type: Data collection, Database references