The second stalk: the delta-b subunit connection in ECF1F0

Acta Physiol Scand Suppl. 1998 Aug;643:169-75.


The ATP synthase F1F0 is the smallest molecular motor yet studied. ATP hydrolysis drives the rotary motion of the primary stalk subunits gamma and epsilon relative to the alpha 3 beta 3 part of F1. Evidence is reviewed to show that the delta and b subunits provide a second stalk that can act as a stator to facilitate these rotational movements.

Publication types

  • Review

MeSH terms

  • Isoenzymes / metabolism*
  • Isoenzymes / ultrastructure
  • Microscopy, Electron
  • Models, Molecular
  • Molecular Motor Proteins / physiology
  • Molecular Motor Proteins / ultrastructure
  • Proton-Translocating ATPases / metabolism*
  • Proton-Translocating ATPases / ultrastructure
  • Rotation


  • Isoenzymes
  • Molecular Motor Proteins
  • Proton-Translocating ATPases