The structure of the trifunctional clavaminic acid synthase exhibits an emerging structural motif found among nonheme iron oxygen activating enzymes that provides the metal active site the ...

The Earth has a layered structure made up of the core ... The outer core is liquid iron and nickel and generates the Earth's magnetic field. And the inner core is made of solid iron and nickel.

Protein-bound iron-sulfur ([Fe-S]) clusters, which are polynuclear combinations of iron and sulfur atoms, are among the most structurally and functionally versatile cofactors in biology 1. [Fe-S ...