New Article- SQ at Qi - more evidence for His involvement

Sergei A. Dikanov, J. Todd Holland, Burkhard Endeward, Derrick R. J. Kolling, Rimma I. Samoilova, Thomas F. Prisner, and Antony R. Crofts
Hydrogen bonds between nitrogen donors and the semiquinone in the Qi-site of the bc1 complex
J. Biol. Chem, 10.1074/jbc.M702333200

New article: another sighting of the SQo semiquinone?

	Zhang H, Osyczka A, Dutton PL, Moser CC.
	Exposing the Complex III Qo semiquinone radical. Biochim Biophys Acta. 2007 May 1; [Epub ahead of print] PMID: 17560537