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 

Starting Model: experimental
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This is version 1.3 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: https://doi.org/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. 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.


  • Organizational Affiliation

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


Macromolecules
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Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
ATP synthase subunit alpha, mitochondrial
A, B, C
510Bos taurusMutation(s): 0 
UniProt
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Go to UniProtKB:  P19483
Entity Groups  
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UniProt GroupP19483
Sequence Annotations
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  • Reference Sequence
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Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
ATP synthase subunit beta, mitochondrial
D, E, F
482Bos taurusMutation(s): 0 
EC: 3.6.3.14 (PDB Primary Data), 7.1.2.2 (UniProt)
UniProt
Find proteins for P00829 (Bos taurus)
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UniProt GroupP00829
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Entity ID: 3
MoleculeChains Sequence LengthOrganismDetailsImage
ATP synthase subunit gamma, mitochondrial272Bos taurusMutation(s): 0 
UniProt
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UniProt GroupP05631
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Entity ID: 4
MoleculeChains Sequence LengthOrganismDetailsImage
ATPase inhibitor, mitochondrial84Bos taurusMutation(s): 0 
Gene Names: ATPIF1ATPI
UniProt
Find proteins for P01096 (Bos taurus)
Explore P01096 
Go to UniProtKB:  P01096
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UniProt GroupP01096
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  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
ANP
Query on ANP

Download Ideal Coordinates CCD File 
I [auth A],
K [auth B],
M [auth C],
O [auth D],
Q [auth F]
PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER
C10 H17 N6 O12 P3
PVKSNHVPLWYQGJ-KQYNXXCUSA-N
MG
Query on MG

Download Ideal Coordinates CCD File 
J [auth A],
L [auth B],
N [auth C],
P [auth D],
R [auth F]
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
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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Ligand Structure Quality Assessment 


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
  • Version 1.3: 2023-12-13
    Changes: Data collection, Database references, Derived calculations, Other, Refinement description, Source and taxonomy