1KIB

cytochrome c6 from Arthrospira maxima: an assembly of 24 subunits in the form of an oblate shell


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.5 Å
  • R-Value Free: 0.223 
  • R-Value Work: 0.204 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structure of cytochrome c6 from Arthrospira maxima: an assembly of 24 subunits in a nearly symmetric shell.

Kerfeld, C.A.Sawaya, M.R.Krogmann, D.W.Yeates, T.O.

(2002) Acta Crystallogr.,Sect.D 58: 1104-1110


  • PubMed Abstract: 
  • Cytochrome c(6) from the cyanobacterium Arthrospira maxima is present in isoforms that can be resolved by size-exclusion chromatography. One isoform crystallized in space group I4(1)32 with eight protein molecules in the asymmetric unit and a total o ...

    Cytochrome c(6) from the cyanobacterium Arthrospira maxima is present in isoforms that can be resolved by size-exclusion chromatography. One isoform crystallized in space group I4(1)32 with eight protein molecules in the asymmetric unit and a total of 384 molecules in the unit cell. Within the crystal, the molecules are arranged as clusters of 24 cytochrome c(6) molecules. Each cluster is a hollow shell with approximate octahedral (432) symmetry. Structural and biochemical studies of cytochrome c(6) isolated from other cyanobacteria and algae have led to the suggestion that cytochrome c(6) forms oligomers. The cytochrome c(6) complex described here is the largest assembly of cytochrome c(6) molecules observed thus far.


    Related Citations: 
    • Structures of Cytochrome c-549 and Cytochrome c6 from the Cyanobacterium Arthrospira maxima
      Sawaya, M.R.,Krogmann, D.W.,Serag, A.,Ho, K.K.,Yeates, T.O.,Kerfeld, C.A.
      (2001) Biochemistry 40: 9215


    Organizational Affiliation

    Molecular Biology Institute, University of California, Los Angeles, Box 951570, 90095-1570, USA. kerfeld@mbi.ucla.edu




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
cytochrome c6
A, B, C, D, E, F, G, H
89Arthrospira maximaMutation(s): 0 
Gene Names: petJ
Find proteins for P00118 (Arthrospira maxima)
Go to UniProtKB:  P00118
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
HEM
Query on HEM

Download SDF File 
Download CCD File 
A, B, C, D, E, F, G, H
PROTOPORPHYRIN IX CONTAINING FE
HEME
C34 H32 Fe N4 O4
KABFMIBPWCXCRK-RGGAHWMASA-L
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.5 Å
  • R-Value Free: 0.223 
  • R-Value Work: 0.204 
  • Space Group: I 41 3 2
Unit Cell:
Length (Å)Angle (°)
a = 237.000α = 90.00
b = 237.000β = 90.00
c = 237.000γ = 90.00
Software Package:
Software NamePurpose
CNSrefinement
SCALEPACKdata scaling
EPMRphasing
DENZOdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2002-07-03
    Type: Initial release
  • Version 1.1: 2008-04-27
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance