1BE3

CYTOCHROME BC1 COMPLEX FROM BOVINE

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.00 Å
  • R-Value Free: 0.320 
  • R-Value Work: 0.260 

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This is version 1.3 of the entry. See complete history. 


Literature

Complete structure of the 11-subunit bovine mitochondrial cytochrome bc1 complex.

Iwata, S., Lee, J.W., Okada, K., Lee, J.K., Iwata, M., Rasmussen, B., Link, T.A., Ramaswamy, S., Jap, B.K.

(1998) Science 281: 64-71

  • DOI: https://doi.org/10.1126/science.281.5373.64
  • Primary Citation of Related Structures:  
    1BE3, 1BGY

  • PubMed Abstract: 

    Mitochondrial cytochrome bc1 complex performs two functions: It is a respiratory multienzyme complex and it recognizes a mitochondrial targeting presequence. Refined crystal structures of the 11-subunit bc1 complex from bovine heart reveal full views of this bifunctional enzyme. The "Rieske" iron-sulfur protein subunit shows significant conformational changes in different crystal forms, suggesting a new electron transport mechanism of the enzyme. The mitochondrial targeting presequence of the "Rieske" protein (subunit 9) is lodged between the two "core" subunits at the matrix side of the complex. These "core" subunits are related to the matrix processing peptidase, and the structure unveils how mitochondrial targeting presequences are recognized.

    • Organizational Affiliation: 

    Life Sciences Division, Lawrence Berkeley National Laboratory, University of California, Berkeley, CA 94720, USA. iwata@xray.bmc.uu.se


Macromolecules
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Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
CYTOCHROME BC1 COMPLEX446Bos taurusMutation(s): 0 
EC: 1.10.2.2
Membrane Entity: Yes 
UniProt
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Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
CYTOCHROME BC1 COMPLEX439Bos taurusMutation(s): 0 
EC: 1.10.2.2
Membrane Entity: Yes 
UniProt
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Entity ID: 3
MoleculeChains Sequence LengthOrganismDetailsImage
CYTOCHROME BC1 COMPLEX379Bos taurusMutation(s): 0 
EC: 1.10.2.2
Membrane Entity: Yes 
UniProt
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Entity ID: 4
MoleculeChains Sequence LengthOrganismDetailsImage
CYTOCHROME BC1 COMPLEX241Bos taurusMutation(s): 0 
EC: 1.10.2.2 (PDB Primary Data), 7.1.1.8 (UniProt)
Membrane Entity: Yes 
UniProt
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Entity ID: 5
MoleculeChains Sequence LengthOrganismDetailsImage
CYTOCHROME BC1 COMPLEX196Bos taurusMutation(s): 0 
EC: 1.10.2.2 (PDB Primary Data), 7.1.1.8 (UniProt)
Membrane Entity: Yes 
UniProt
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Entity ID: 6
MoleculeChains Sequence LengthOrganismDetailsImage
CYTOCHROME BC1 COMPLEX110Bos taurusMutation(s): 0 
EC: 1.10.2.2
Membrane Entity: Yes 
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Entity ID: 7
MoleculeChains Sequence LengthOrganismDetailsImage
CYTOCHROME BC1 COMPLEX81Bos taurusMutation(s): 0 
EC: 1.10.2.2
Membrane Entity: Yes 
UniProt
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Entity ID: 8
MoleculeChains Sequence LengthOrganismDetailsImage
CYTOCHROME BC1 COMPLEX78Bos taurusMutation(s): 0 
EC: 1.10.2.2
Membrane Entity: Yes 
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Entity ID: 9
MoleculeChains Sequence LengthOrganismDetailsImage
CYTOCHROME BC1 COMPLEX78Bos taurusMutation(s): 0 
EC: 1.10.2.2 (PDB Primary Data), 7.1.1.8 (UniProt)
Membrane Entity: Yes 
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Entity ID: 10
MoleculeChains Sequence LengthOrganismDetailsImage
CYTOCHROME BC1 COMPLEX62Bos taurusMutation(s): 0 
EC: 1.10.2.2
Membrane Entity: Yes 
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Entity ID: 11
MoleculeChains Sequence LengthOrganismDetailsImage
CYTOCHROME BC1 COMPLEX56Bos taurusMutation(s): 0 
EC: 1.10.2.2
Membrane Entity: Yes 
UniProt
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UniProt GroupP07552
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Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.00 Å
  • R-Value Free: 0.320 
  • R-Value Work: 0.260 
  • Space Group: P 65 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 211.2α = 90
b = 211.2β = 90
c = 339.28γ = 120
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
CCP4model building
REFMACrefinement
CCP4phasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1999-01-13
    Type: Initial release
  • Version 1.1: 2008-03-03
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2024-10-16
    Changes: Data collection, Database references, Derived calculations, Structure summary