I have on various occasions reported on the various shapes and functions that Achim Müller's group have created using inorganic building blocks. Now they have found out that very similar structural units are found in a molybdenum storage (MoSto) protein. Which opens to possibility of plugging the existing knowledge on artificial nanostructures into a real life protein.

Read my story here:

http://www.rsc.org/chemistryworld/News/2007/March/06030702.asp

Metal ions (yellow) are lined up in the central cavity of this protein.