Key points are not available for this paper at this time.
Iron muscles into mussels: Marine mussels adhere to rocks with a protein-based glue. An iron complex is the key curing agent in this adhesive, and the iron center is coordinated by three DOPA residues (see picture). These studies present the first identified case in which a transition-metal center is integral to forming a noncrystalline biological material.
Sever et al. (Wed,) studied this question.