1BGY

CYTOCHROME BC1 COMPLEX FROM BOVINE


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3 Å
  • R-Value Free: 0.360 
  • R-Value Work: 0.320 

wwPDB Validation 3D Report Full Report


This is version 1.2 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

  • Primary Citation of Related Structures:  

  • 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 ...

    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

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
CYTOCHROME BC1 COMPLEX
A, M
446Bos taurusMutation(s): 0 
Gene Names: UQCRC1
Membrane protein
mpstruct
Group: 
TRANSMEMBRANE PROTEINS: ALPHA-HELICAL
Sub Group: 
Electron Transport Chain Complexes: Complex III (Cytochrome bc1)
Protein: 
Cytochrome bc1
Find proteins for P31800 (Bos taurus)
Go to Gene View: UQCRC1
Go to UniProtKB:  P31800
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
CYTOCHROME BC1 COMPLEX
B, N
439Bos taurusMutation(s): 0 
Gene Names: UQCRC2
Membrane protein
mpstruct
Group: 
TRANSMEMBRANE PROTEINS: ALPHA-HELICAL
Sub Group: 
Electron Transport Chain Complexes: Complex III (Cytochrome bc1)
Protein: 
Cytochrome bc1
Find proteins for P23004 (Bos taurus)
Go to Gene View: UQCRC2
Go to UniProtKB:  P23004
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
CYTOCHROME BC1 COMPLEX
C, O
379Bos taurusMutation(s): 0 
Gene Names: MT-CYB (COB, CYTB, MTCYB)
Membrane protein
mpstruct
Group: 
TRANSMEMBRANE PROTEINS: ALPHA-HELICAL
Sub Group: 
Electron Transport Chain Complexes: Complex III (Cytochrome bc1)
Protein: 
Cytochrome bc1
Find proteins for P00157 (Bos taurus)
Go to Gene View: MT-CYB
Go to UniProtKB:  P00157
Entity ID: 4
MoleculeChainsSequence LengthOrganismDetails
CYTOCHROME BC1 COMPLEX
D, P
241Bos taurusMutation(s): 0 
Gene Names: CYC1
Membrane protein
mpstruct
Group: 
TRANSMEMBRANE PROTEINS: ALPHA-HELICAL
Sub Group: 
Electron Transport Chain Complexes: Complex III (Cytochrome bc1)
Protein: 
Cytochrome bc1
Find proteins for P00125 (Bos taurus)
Go to Gene View: CYC1
Go to UniProtKB:  P00125
Entity ID: 5
MoleculeChainsSequence LengthOrganismDetails
CYTOCHROME BC1 COMPLEX
E, Q
196Bos taurusMutation(s): 0 
Gene Names: UQCRFS1
EC: 1.10.2.2
Membrane protein
mpstruct
Group: 
TRANSMEMBRANE PROTEINS: ALPHA-HELICAL
Sub Group: 
Electron Transport Chain Complexes: Complex III (Cytochrome bc1)
Protein: 
Cytochrome bc1
Find proteins for P13272 (Bos taurus)
Go to Gene View: UQCRFS1
Go to UniProtKB:  P13272
Entity ID: 6
MoleculeChainsSequence LengthOrganismDetails
CYTOCHROME BC1 COMPLEX
F, R
110Bos taurusMutation(s): 0 
Gene Names: UQCRB
Membrane protein
mpstruct
Group: 
TRANSMEMBRANE PROTEINS: ALPHA-HELICAL
Sub Group: 
Electron Transport Chain Complexes: Complex III (Cytochrome bc1)
Protein: 
Cytochrome bc1
Find proteins for P00129 (Bos taurus)
Go to Gene View: UQCRB
Go to UniProtKB:  P00129
Entity ID: 7
MoleculeChainsSequence LengthOrganismDetails
CYTOCHROME BC1 COMPLEX
G, S
81Bos taurusMutation(s): 0 
Gene Names: UQCRQ
Membrane protein
mpstruct
Group: 
TRANSMEMBRANE PROTEINS: ALPHA-HELICAL
Sub Group: 
Electron Transport Chain Complexes: Complex III (Cytochrome bc1)
Protein: 
Cytochrome bc1
Find proteins for P13271 (Bos taurus)
Go to Gene View: UQCRQ
Go to UniProtKB:  P13271
Entity ID: 8
MoleculeChainsSequence LengthOrganismDetails
CYTOCHROME BC1 COMPLEX
H, T
78Bos taurusMutation(s): 0 
Gene Names: UQCRH
Membrane protein
mpstruct
Group: 
TRANSMEMBRANE PROTEINS: ALPHA-HELICAL
Sub Group: 
Electron Transport Chain Complexes: Complex III (Cytochrome bc1)
Protein: 
Cytochrome bc1
Find proteins for P00126 (Bos taurus)
Go to Gene View: UQCRH
Go to UniProtKB:  P00126
Entity ID: 9
MoleculeChainsSequence LengthOrganismDetails
CYTOCHROME BC1 COMPLEX
I, U
78Bos taurusMutation(s): 0 
Gene Names: UQCRFS1
EC: 1.10.2.2
Membrane protein
mpstruct
Group: 
TRANSMEMBRANE PROTEINS: ALPHA-HELICAL
Sub Group: 
Electron Transport Chain Complexes: Complex III (Cytochrome bc1)
Protein: 
Cytochrome bc1
Find proteins for P13272 (Bos taurus)
Go to Gene View: UQCRFS1
Go to UniProtKB:  P13272
Entity ID: 10
MoleculeChainsSequence LengthOrganismDetails
CYTOCHROME BC1 COMPLEX
J, V
62Bos taurusMutation(s): 0 
Gene Names: UQCR10
Membrane protein
mpstruct
Group: 
TRANSMEMBRANE PROTEINS: ALPHA-HELICAL
Sub Group: 
Electron Transport Chain Complexes: Complex III (Cytochrome bc1)
Protein: 
Cytochrome bc1
Find proteins for P00130 (Bos taurus)
Go to Gene View: UQCR10
Go to UniProtKB:  P00130
Entity ID: 11
MoleculeChainsSequence LengthOrganismDetails
CYTOCHROME BC1 COMPLEX
K, W
56Bos taurusMutation(s): 0 
Gene Names: UQCR11 (UQCR)
Membrane protein
mpstruct
Group: 
TRANSMEMBRANE PROTEINS: ALPHA-HELICAL
Sub Group: 
Electron Transport Chain Complexes: Complex III (Cytochrome bc1)
Protein: 
Cytochrome bc1
Find proteins for P07552 (Bos taurus)
Go to Gene View: UQCR11
Go to UniProtKB:  P07552
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
FES
Query on FES

Download SDF File 
Download CCD File 
Q
FE2/S2 (INORGANIC) CLUSTER
Fe2 S2
NIXDOXVAJZFRNF-UHFFFAOYSA-N
 Ligand Interaction
HEM
Query on HEM

Download SDF File 
Download CCD File 
C, O
PROTOPORPHYRIN IX CONTAINING FE
HEME
C34 H32 Fe N4 O4
KABFMIBPWCXCRK-RGGAHWMASA-L
 Ligand Interaction
HEC
Query on HEC

Download SDF File 
Download CCD File 
D, P
HEME C
C34 H34 Fe N4 O4
HXQIYSLZKNYNMH-LJNAALQVSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3 Å
  • R-Value Free: 0.360 
  • R-Value Work: 0.320 
  • Space Group: P 65
Unit Cell:
Length (Å)Angle (°)
a = 130.110α = 90.00
b = 130.110β = 90.00
c = 720.940γ = 120.00
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
AMoREphasing
REFMACrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1999-01-06
    Type: Initial release
  • Version 1.1: 2008-03-03
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance