Isolation and characterisation of a functional alpha beta heterodimer from the ATP synthase of Rhodospirillum rubrum.

@article{Andralojc1992IsolationAC,
  title={Isolation and characterisation of a functional alpha beta heterodimer from the ATP synthase of Rhodospirillum rubrum.},
  author={Paul John Andralojc and David A Harris},
  journal={FEBS letters},
  year={1992},
  volume={310 2},
  pages={187-92}
}
An alpha beta heterodimer of the F1-ATPase of Rhodospirillum rubrum was isolated by extraction of chromatophores with LiCl. Each alpha beta heterodimer contains one tightly bound ADP, which is released upon removal of medium Mg2+. The dimer can be reversibly dissociated by removal of Mg(2+)-ions. The alpha beta heterodimer restores both ATP-synthetic and -hydrolytic activities to LiCl-treated chromatophores, saturation being achieved at approximately 2 mmol alpha beta.mol BChl-1. The… CONTINUE READING

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