3V6I

Crystal structure of the peripheral stalk of Thermus thermophilus H+-ATPase/synthase at 2.25 A resolution

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.25 Å
  • R-Value Free: 0.263 
  • R-Value Work: 0.223 
  • R-Value Observed: 0.225 

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This is version 1.1 of the entry. See complete history. 


Literature

The dynamic stator stalk of rotary ATPases

Stewart, A.G., Lee, L.K., Donohoe, M., Chaston, J.J., Stock, D.

(2012) Nat Commun 3: 687-687

  • DOI: 10.1038/ncomms1693
  • Primary Citation of Related Structures:  
    3V6I

  • PubMed Abstract: 

    • Rotary ATPases couple ATP hydrolysis/synthesis with proton translocation across biological membranes and so are central components of the biological energy conversion machinery. Their peripheral stalks are essential components that counteract torque generated by rotation of the central stalk during ATP synthesis or hydrolysis ...

    Rotary ATPases couple ATP hydrolysis/synthesis with proton translocation across biological membranes and so are central components of the biological energy conversion machinery. Their peripheral stalks are essential components that counteract torque generated by rotation of the central stalk during ATP synthesis or hydrolysis. Here we present a 2.25-Å resolution crystal structure of the peripheral stalk from Thermus thermophilus A-type ATPase/synthase. We identify bending and twisting motions inherent within the structure that accommodate and complement a radial wobbling of the ATPase headgroup as it progresses through its catalytic cycles, while still retaining azimuthal stiffness necessary to counteract rotation of the central stalk. The conformational freedom of the peripheral stalk is dictated by its unusual right-handed coiled-coil architecture, which is in principle conserved across all rotary ATPases. In context of the intact enzyme, the dynamics of the peripheral stalks provides a potential mechanism for cooperativity between distant parts of rotary ATPases.

    Organizational Affiliation: 

    Structural and Computational Biology Division, The Victor Chang Cardiac Research Institute, Darlinghurst, Australia.



Macromolecules
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
V-type ATP synthase subunit EA,
D [auth Y]		187Thermus thermophilus HB8Mutation(s): 0 
Gene Names: atpE, TTHA1276, vatE
UniProt
Find proteins for P74901 (Thermus thermophilus (strain ATCC 27634 / DSM 579 / HB8))
Explore P74901 
Go to UniProtKB:  P74901
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP74901
Protein Feature View
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  • Reference Sequence
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
V-type ATP synthase, subunit (VAPC-THERM)B,
C [auth X]		105Thermus thermophilus HB8Mutation(s): 0 
Gene Names: TTHA1279
UniProt
Find proteins for Q5SIT5 (Thermus thermophilus (strain ATCC 27634 / DSM 579 / HB8))
Explore Q5SIT5 
Go to UniProtKB:  Q5SIT5
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ5SIT5
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.25 Å
  • R-Value Free: 0.263 
  • R-Value Work: 0.223 
  • R-Value Observed: 0.225 
  • Space Group: P 21 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 102.51α = 90
b = 208.69β = 90
c = 36.9γ = 90
Software Package:
Software NamePurpose
SCALAdata scaling
SHARPphasing
SOLOMONphasing
REFMACrefinement
PDB_EXTRACTdata extraction
XDSdata reduction

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2012-02-22
    Type: Initial release
  • Version 1.1: 2012-03-07
    Changes: Database references