Dear Leonard,
Have a look at the work of Elena Cabezon, Martin Montgomery, Andrew
Leslie and John Walker. They solved a structure of two F1-ATPase
molecules linked by a dimeric inhibitor subunit; if I understand
both cases correctly there are similarities.
Cabezón E, Montgomery MG, Leslie
On Saturday 18 October 2008, Leoanrd M Thomas wrote:
To clarify a bit, the protein is not cyclic, it is two of the wild type
protein molecules joined together by a short peptide linker creating a
new protein.
Here is my attempt at an ascii sketch,
2-fold
