PMID- 9204897
OWN - NLM
STAT- MEDLINE
DCOM- 19970721
LR  - 20131121
IS  - 0036-8075 (Print)
IS  - 0036-8075 (Linking)
VI  - 277
IP  - 5322
DP  - 1997 Jul 4
TI  - Crystal structure of the cytochrome bc1 complex from bovine heart mitochondria.
PG  - 60-6
AB  - 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.
FAU - Xia, D
AU  - Xia D
AD  - Howard Hughes Medical Institute and Department of Biochemistry, University of
      Texas Southwestern Medical Center, Dallas, TX 75235, USA.
FAU - Yu, C A
AU  - Yu CA
FAU - Kim, H
AU  - Kim H
FAU - Xia, J Z
AU  - Xia JZ
FAU - Kachurin, A M
AU  - Kachurin AM
FAU - Zhang, L
AU  - Zhang L
FAU - Yu, L
AU  - Yu L
FAU - Deisenhofer, J
AU  - Deisenhofer J
LA  - eng
SI  - PDB/1QCR
GR  - GM 30721/GM/NIGMS NIH HHS/United States
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PT  - Research Support, U.S. Gov't, P.H.S.
PL  - United States
TA  - Science
JT  - Science (New York, N.Y.)
JID - 0404511
RN  - 0 (Cytochrome b Group)
RN  - 0 (Methacrylates)
RN  - 0 (Thiazoles)
RN  - 642-15-9 (Antimycin A)
RN  - 76706-55-3 (myxothiazol)
RN  - 9035-42-1 (Cytochromes c1)
RN  - E1UOL152H7 (Iron)
RN  - EC 1.10.2.2 (Electron Transport Complex III)
SB  - IM
EIN - Science 1997 Dec 19;278(5346):2037
MH  - Animals
MH  - Antimycin A/metabolism/pharmacology
MH  - Binding Sites
MH  - Cattle
MH  - Crystallography, X-Ray
MH  - Cytochrome b Group/chemistry
MH  - Cytochromes c1/chemistry
MH  - Dimerization
MH  - Electron Transport Complex III/*chemistry/metabolism
MH  - Intracellular Membranes/enzymology
MH  - Iron/metabolism
MH  - Methacrylates
MH  - Mitochondria, Heart/*enzymology
MH  - Models, Molecular
MH  - Molecular Sequence Data
MH  - Oxidation-Reduction
MH  - *Protein Conformation
MH  - Protein Folding
MH  - Protein Structure, Secondary
MH  - Protein Structure, Tertiary
MH  - Thiazoles/metabolism/pharmacology
EDAT- 1997/07/04 00:00
MHDA- 1997/07/04 00:01
CRDT- 1997/07/04 00:00
PHST- 1997/07/04 00:00 [pubmed]
PHST- 1997/07/04 00:01 [medline]
PHST- 1997/07/04 00:00 [entrez]
PST - ppublish
SO  - Science. 1997 Jul 4;277(5322):60-6.