What is "vanadium bromoperoxidase"

n. (context enzyme English) A haloperoxidase, used by some algae to synthesise halogen compounds, that has a requirement for the element vanadium

Vanadium bromoperoxidase are a kind of haloperoxidase that is involved in the bromination of organic compounds associated with defense and pigmentation in seaweeds and marine algae. These enzymes produce the bulk of organobromine compounds in the world.

Vanadium bromoperoxidase are one of the few classes of enzymes that require vanadium. The active site features a vanadium oxide center attached to the protein via one histidine side chain and a collection of hydrogen bonds to the oxide ligands.