On 2014 Nov 16, EDWARD BERRY commented:

This is beautiful work, and really answered the question about the Three Core Proteins. But it would have been nice to put it in context of previous work. Something like: ". . . as concluded by Berry et al. 1991 based on heme/protein ratio of the isolated complex, and contrary to the conclusion of Braun and Schmitz 1992 (Eur. J. Biochem. 208,761 -767) based on size estimated by gel filtration".

On 2014 Nov 16, EDWARD BERRY commented:

This is beautiful work, and really answered the question about the Three Core Proteins. But it would have been nice to put it in context of previous work. Something like: ". . . as concluded by Berry et al. 1991 based on heme/protein ratio of the isolated complex, and contrary to the conclusion of Braun and Schmitz 1992 (Eur. J. Biochem. 208,761 -767) based on size estimated by gel filtration".