1CZJ

CYTOCHROME C OF CLASS III (AMBLER) 26 KD


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.16 Å
  • R-Value Free: 0.263 
  • R-Value Work: 0.204 
  • R-Value Observed: 0.204 

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This is version 1.2 of the entry. See complete history


Literature

Crystal structure of a dimeric octaheme cytochrome c3 (M(r) 26,000) from Desulfovibrio desulfuricans Norway.

Czjzek, M.Guerlesquin, F.Bruschi, M.Haser, R.

(1996) Structure 4: 395-404

  • DOI: 10.1016/s0969-2126(96)00045-7
  • Primary Citation of Related Structures:  
    1CZJ

  • PubMed Abstract: 
  • The octaheme cytochrome C3 (M(r) 26,000; cc3) from Desulfovibrio desulfuricans Norway is a dimeric cytochrome made up of two identical subunits, each containing four heme groups. It is involved in the redox transfer chain of sulfate-reducing bacteria, which links the periplasmic oxidation of hydrogen to the cytoplasmic reduction of sulfate ...

    The octaheme cytochrome C3 (M(r) 26,000; cc3) from Desulfovibrio desulfuricans Norway is a dimeric cytochrome made up of two identical subunits, each containing four heme groups. It is involved in the redox transfer chain of sulfate-reducing bacteria, which links the periplasmic oxidation of hydrogen to the cytoplasmic reduction of sulfate. The amino-acid sequence of cc3 shows similarities to that of the tetraheme cytochrome c3 (M(r) 13,000; c3) from the same bacteria. Structural analysis of cc3 forms a basis for understanding the precise roles of the multiheme-containing redox proteins and the reason for the presence of several different multiheme cytochromes in one bacterial strain.


    Related Citations: 
    • Molecular and Structural Basis of Electron Transfer in Tetra-and Octa-Heme Cytochromes
      Czjzek, M., Payan, F., Haser, R.
      (1994) Biochimie 76: 546

    Organizational Affiliation

    Laboratoire de Cristallographie et Cristallisation des Macromolécules Biologiques, URA 1296, CNRS, Marseille, France.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
CYTOCHROME C3A111Desulfomicrobium norvegicumMutation(s): 0 
UniProt
Find proteins for P38554 (Desulfomicrobium norvegicum (strain DSM 1741 / NCIMB 8310))
Explore P38554 
Go to UniProtKB:  P38554
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP38554
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
HEM
Query on HEM

Download Ideal Coordinates CCD File 
C [auth A],
D [auth A],
E [auth A],
F [auth A]
PROTOPORPHYRIN IX CONTAINING FE
C34 H32 Fe N4 O4
KABFMIBPWCXCRK-RGGAHWMASA-L
 Ligand Interaction
SO4
Query on SO4

Download Ideal Coordinates CCD File 
B [auth A]SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.16 Å
  • R-Value Free: 0.263 
  • R-Value Work: 0.204 
  • R-Value Observed: 0.204 
  • Space Group: P 31 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 73.71α = 90
b = 73.71β = 90
c = 57.25γ = 120
Software Package:
Software NamePurpose
X-PLORmodel building
X-PLORrefinement
XDSdata reduction
X-PLORphasing

Structure Validation

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Ligand Structure Quality Assessment 


Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1996-07-11
    Type: Initial release
  • Version 1.1: 2008-03-24
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Derived calculations, Version format compliance