1QCR

CRYSTAL STRUCTURE OF BOVINE MITOCHONDRIAL CYTOCHROME BC1 COMPLEX, ALPHA CARBON ATOMS ONLY


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.70 Å
  • R-Value Free: 0.375 
  • R-Value Work: 0.300 
  • R-Value Observed: 0.300 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Crystal structure of the cytochrome bc1 complex from bovine heart mitochondria.

Xia, D.Yu, C.A.Kim, H.Xia, J.Z.Kachurin, A.M.Zhang, L.Yu, L.Deisenhofer, J.

(1997) Science 277: 60-66

  • DOI: https://doi.org/10.1126/science.277.5322.60
  • Primary Citation of Related Structures:  
    1QCR

  • PubMed Abstract: 

    On the basis of x-ray diffraction data to a resolution of 2.9 angstroms, atomic models of most protein components of the bovine cytochrome bc1 complex were built, including core 1, core 2, cytochrome b, subunit 6, subunit 7, a carboxyl-terminal fragment of cytochrome c1, and an amino-terminal fragment of the iron-sulfur protein. The positions of the four iron centers within the bc1 complex and the binding sites of the two specific respiratory inhibitors antimycin A and myxothiazol were identified. The membrane-spanning region of each bc1 complex monomer consists of 13 transmembrane helices, eight of which belong to cytochrome b. Closely interacting monomers are arranged as symmetric dimers and form cavities through which the inhibitor binding pockets can be accessed. The proteins core 1 and core 2 are structurally similar to each other and consist of two domains of roughly equal size and identical folding topology.


  • Organizational Affiliation

    Howard Hughes Medical Institute and Department of Biochemistry, University of Texas Southwestern Medical Center, Dallas, TX 75235, USA.


Macromolecules
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Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
UBIQUINOL CYTOCHROME C OXIDOREDUCTASE446Bos taurusMutation(s): 0 
EC: 1.10.2.2
UniProt
Find proteins for P31800 (Bos taurus)
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Sequence Annotations
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  • Reference Sequence
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Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
UBIQUINOL CYTOCHROME C OXIDOREDUCTASE423Bos taurusMutation(s): 0 
EC: 1.10.2.2
UniProt
Find proteins for P23004 (Bos taurus)
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Entity ID: 3
MoleculeChains Sequence LengthOrganismDetailsImage
UBIQUINOL CYTOCHROME C OXIDOREDUCTASE378Bos taurusMutation(s): 0 
EC: 1.10.2.2
UniProt
Find proteins for P00157 (Bos taurus)
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Entity ID: 4
MoleculeChains Sequence LengthOrganismDetailsImage
UBIQUINOL CYTOCHROME C OXIDOREDUCTASE75Bos taurusMutation(s): 0 
EC: 1.10.2.2
UniProt
Find proteins for P00125 (Bos taurus)
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Entity ID: 5
MoleculeChains Sequence LengthOrganismDetailsImage
UBIQUINOL CYTOCHROME C OXIDOREDUCTASE196Bos taurusMutation(s): 0 
EC: 1.10.2.2
UniProt
Find proteins for P13272 (Bos taurus)
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Entity ID: 6
MoleculeChains Sequence LengthOrganismDetailsImage
UBIQUINOL CYTOCHROME C OXIDOREDUCTASE103Bos taurusMutation(s): 0 
EC: 1.10.2.2
UniProt
Find proteins for P00129 (Bos taurus)
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Entity ID: 7
MoleculeChains Sequence LengthOrganismDetailsImage
UBIQUINOL CYTOCHROME C OXIDOREDUCTASE70Bos taurusMutation(s): 0 
EC: 1.10.2.2
UniProt
Find proteins for P13271 (Bos taurus)
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Entity ID: 8
MoleculeChains Sequence LengthOrganismDetailsImage
UBIQUINOL CYTOCHROME C OXIDOREDUCTASE60Bos taurusMutation(s): 0 
EC: 1.10.2.2
UniProt
Find proteins for P00126 (Bos taurus)
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Entity ID: 9
MoleculeChains Sequence LengthOrganismDetailsImage
UBIQUINOL CYTOCHROME C OXIDOREDUCTASE28Bos taurusMutation(s): 0 
EC: 1.10.2.2
UniProt
Find proteins for P13272 (Bos taurus)
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Entity ID: 10
MoleculeChains Sequence LengthOrganismDetailsImage
UBIQUINOL CYTOCHROME C OXIDOREDUCTASE59Bos taurusMutation(s): 0 
EC: 1.10.2.2
UniProt
Find proteins for P00130 (Bos taurus)
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Entity ID: 11
MoleculeChains Sequence LengthOrganismDetailsImage
UBIQUINOL CYTOCHROME C OXIDOREDUCTASE45Bos taurusMutation(s): 0 
EC: 1.10.2.2
UniProt
Find proteins for P07552 (Bos taurus)
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
HEM
Query on HEM

Download Ideal Coordinates CCD File 
L [auth C]PROTOPORPHYRIN IX CONTAINING FE
C34 H32 Fe N4 O4
KABFMIBPWCXCRK-RGGAHWMASA-L
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.70 Å
  • R-Value Free: 0.375 
  • R-Value Work: 0.300 
  • R-Value Observed: 0.300 
  • Space Group: I 41 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 153.5α = 90
b = 153.5β = 90
c = 597.7γ = 90
Software Package:
Software NamePurpose
X-PLORmodel building
X-PLORrefinement
DENZOdata reduction
SCALEPACKdata scaling
X-PLORphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1998-10-14
    Type: Initial release
  • Version 1.1: 2008-03-24
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2024-02-14
    Changes: Data collection, Database references, Derived calculations, Other