Hmmm. Sounds interesting. Like an enzyme active site. I think photosystem II has 4 Mn atoms.
(
The Alchemist king of the needlessly complicated,
Mon 25 Feb 2008, 20:10,
archived)
I might have worked on that
But it's a different system I'm on at the moment...
(
Colonel Boris "...a desperate Buzzfeed imitation...",
Mon 25 Feb 2008, 20:43,
archived)