1OHH

BOVINE MITOCHONDRIAL F1-ATPASE complexed with the inhibitor protein IF1


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.80 Å
  • R-Value Free: 0.280 
  • R-Value Work: 0.232 
  • R-Value Observed: 0.232 

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This is version 1.2 of the entry. See complete history


Literature

The Structure of Bovine F1-ATPase in Complex with its Regulatory Protein If1

Cabezon, E.Montgomery, M.G.Leslie, A.G.W.Walker, J.E.

(2003) Nat Struct Biol 10: 744

  • DOI: 10.1038/nsb966
  • Primary Citation of Related Structures:  
    1OHH

  • PubMed Abstract: 
  • In mitochondria, the hydrolytic activity of ATP synthase is prevented by an inhibitor protein, IF1. The active bovine protein (84 amino acids) is an alpha-helical dimer with monomers associated via an antiparallel alpha-helical coiled coil composed of residues 49-81 ...

    In mitochondria, the hydrolytic activity of ATP synthase is prevented by an inhibitor protein, IF1. The active bovine protein (84 amino acids) is an alpha-helical dimer with monomers associated via an antiparallel alpha-helical coiled coil composed of residues 49-81. The N-terminal inhibitory sequences in the active dimer bind to two F1-ATPases in the presence of ATP. In the crystal structure of the F1-IF1 complex at 2.8 A resolution, residues 1-37 of IF1 bind in the alpha(DP)-beta(DP) interface of F1-ATPase, and also contact the central gamma subunit. The inhibitor opens the catalytic interface between the alpha(DP) and beta(DP) subunits relative to previous structures. The presence of ATP in the catalytic site of the beta(DP) subunit implies that the inhibited state represents a pre-hydrolysis step on the catalytic pathway of the enzyme.


    Related Citations: 
    • Structure at 2.8 A Resolution of F1-ATPase from Bovine Heart Mitochondria
      Abrahams, J.P., Leslie, A.G.W., Lutter, R., Walker, J.E.
      (1994) Nature 370: 621
    • Crystallization of F1-ATPase from Bovine Heart Mitochondria
      Lutter, R., Abrahams, J.P., Van Raaij, M.J., Todd, R.J., Lundqvist, T., Buchanan, S.K., Leslie, A.G., Walker, J.E.
      (1993) J Mol Biol 229: 787
    • The Structure of Bovine If1, the Regulatory Subunit of Mitochondrial F-ATPase
      Cabezon, E., Runswick, M.J., Leslie, A.G.W., Walker, J.E.
      (1993) EMBO J 20: 6990

    Organizational Affiliation

    The Medical Research Council Dunn Human Nutrition Unit, Hills Road, Cambridge CB2 2XY, UK.



Macromolecules
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
ATP synthase subunit alpha, mitochondrialA, B, C510Bos taurusMutation(s): 0 
Gene Names: ATP5F1AATP5A1ATP5A2
Find proteins for P19483 (Bos taurus)
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Go to UniProtKB:  P19483
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  • Reference Sequence
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
ATP synthase subunit beta, mitochondrialD, E, F482Bos taurusMutation(s): 0 
Gene Names: ATP5F1BATP5B
EC: 3.6.3.14 (PDB Primary Data), 7.1.2.2 (UniProt)
Find proteins for P00829 (Bos taurus)
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Go to UniProtKB:  P00829
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  • Reference Sequence
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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
ATP synthase subunit gamma, mitochondrialG272Bos taurusMutation(s): 0 
Gene Names: ATP5F1CATP5CATP5C1
Find proteins for P05631 (Bos taurus)
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Go to UniProtKB:  P05631
Protein Feature View
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  • Reference Sequence
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Entity ID: 4
MoleculeChainsSequence LengthOrganismDetailsImage
ATPase inhibitor, mitochondrialH84Bos taurusMutation(s): 0 
Gene Names: ATPIF1ATPIATP5IF1
Find proteins for P01096 (Bos taurus)
Explore P01096 
Go to UniProtKB:  P01096
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.80 Å
  • R-Value Free: 0.280 
  • R-Value Work: 0.232 
  • R-Value Observed: 0.232 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 272.3α = 90
b = 107.2β = 90
c = 152.4γ = 90
Software Package:
Software NamePurpose
CNSrefinement
MOSFLMdata reduction
CCP4data scaling
AMoREphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2003-06-09
    Type: Initial release
  • Version 1.1: 2011-06-02
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance