1RFS

RIESKE SOLUBLE FRAGMENT FROM SPINACH

• PDB DOI: https://doi.org/10.2210/pdb1RFS/pdb

• Classification: IRON-SULFUR PROTEIN
• Organism(s): Spinacia oleracea
• Mutation(s): No 


• Deposited: 1997-08-14 Released: 1998-01-28 
• Deposition Author(s): Carrell, C.J., Zhang, H., Cramer, W.A., Smith, J.L.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.83 Å
• R-Value Free: 0.220 
• R-Value Work: 0.170 
• R-Value Observed: 0.170 

Literature

Biological identity and diversity in photosynthesis and respiration: structure of the lumen-side domain of the chloroplast Rieske protein.

Carrell, C.J., Zhang, H., Cramer, W.A., Smith, J.L.

(1997) Structure 5: 1613-1625

• PubMed: 9438861 
• DOI: https://doi.org/10.1016/s0969-2126(97)00309-2
• Primary Citation of Related Structures:  
  1RFS


• PubMed Abstract: 
  

  The cytochrome b6f complex functions in oxygenic photosynthesis as an integral membrane protein complex that mediates coupled electron transfer and proton translocation. The Rieske [2Fe-2S] protein subunit of the complex functions at the electropositive (p) membrane interface as the electron acceptor for plastoquinol and donor for the cytochrome f subunit, and may have a dynamic role in catalyzing electron and proton transfer at the membrane interface. There are significant structure/function similarities to the cytochrome bc1 complex of the respiratory chain.

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Organizational Affiliation: 

Department of Biological Sciences, Purdue University, West Lafayette, IN 47907-1392, USA.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 14.81 kDa 
• Atom Count: 1,110 
• Modelled Residue Count: 127 
• Deposited Residue Count: 139 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
RIESKE PROTEIN	A	139	Spinacia oleracea	Mutation(s): 0
UniProt
Find proteins for P08980 (Spinacia oleracea) Explore P08980  Go to UniProtKB:  P08980

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
FES	B [auth A]	FE2/S2 (INORGANIC) CLUSTER Fe2 S2 NIXDOXVAJZFRNF-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.83 Å
• R-Value Free: 0.220 
• R-Value Work: 0.170 
• R-Value Observed: 0.170 
• Space Group: P 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 29.05	α = 95.6
b = 31.87	β = 106.1
c = 35.79	γ = 117.3

Software Package:

Software Name	Purpose
DENZO	data reduction
SCALA	data scaling
X-PLOR	model building
X-PLOR	refinement
CCP4	data scaling
X-PLOR	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 1998-01-28 
Deposition Author(s): Carrell, C.J., Zhang, H., Cramer, W.A., Smith, J.L.

Revision History  

• Version 1.0: 1998-01-28
  Type: Initial release
  
• Version 1.1: 2008-03-24
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance