3VO1

Crystal structure of Zea mays leaf ferredoxin-NADP+ reductase II


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.228 
  • R-Value Work: 0.195 

wwPDB Validation 3D Report Full Report


This is version 1.0 of the entry. See complete history

Literature

N-terminal structure of maize ferredoxin:NADP+ reductase determines recruitment into different thylakoid membrane complexes

Twachtmann, M.Altmann, B.Muraki, N.Voss, I.Okutani, S.Kurisu, G.Hase, T.Hanke, G.T.

(2012) Plant Cell 24: 2979-2991

  • DOI: 10.1105/tpc.111.094532
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • To adapt to different light intensities, photosynthetic organisms manipulate the flow of electrons through several alternative pathways at the thylakoid membrane. The enzyme ferredoxin:NADP(+) reductase (FNR) has the potential to regulate this electr ...

    To adapt to different light intensities, photosynthetic organisms manipulate the flow of electrons through several alternative pathways at the thylakoid membrane. The enzyme ferredoxin:NADP(+) reductase (FNR) has the potential to regulate this electron partitioning because it is integral to most of these electron cascades and can associate with several different membrane complexes. However, the factors controlling relative localization of FNR to different membrane complexes have not yet been established. Maize (Zea mays) contains three chloroplast FNR proteins with totally different membrane association, and we found that these proteins have variable distribution between cells conducting predominantly cyclic electron transport (bundle sheath) and linear electron transport (mesophyll). Here, the crystal structures of all three enzymes were solved, revealing major structural differences at the N-terminal domain and dimer interface. Expression in Arabidopsis thaliana of maize FNRs as chimeras and truncated proteins showed the N-terminal determines recruitment of FNR to different membrane complexes. In addition, the different maize FNR proteins localized to different thylakoid membrane complexes on expression in Arabidopsis, and analysis of chlorophyll fluorescence and photosystem I absorbance demonstrates the impact of FNR location on photosynthetic electron flow.


    Organizational Affiliation

    Department of Plant Physiology, University of Osnabrück, Osnabruck 49076, Germany.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Ferredoxin
A, B
314Zea maysGene Names: L-FNRII (541626)
EC: 1.18.1.2
Find proteins for Q9SLP5 (Zea mays)
Go to UniProtKB:  Q9SLP5
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
FAD
Query on FAD

Download SDF File 
Download CCD File 
A, B
FLAVIN-ADENINE DINUCLEOTIDE
C27 H33 N9 O15 P2
VWWQXMAJTJZDQX-UYBVJOGSSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.228 
  • R-Value Work: 0.195 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 49.432α = 90.00
b = 72.512β = 99.71
c = 90.407γ = 90.00
Software Package:
Software NamePurpose
CNSrefinement
HKL-2000data scaling
HKL-2000data collection
HKL-2000data reduction
MOLREPphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2012-12-05
    Type: Initial release