Function

Haloperoxidases catalyze the oxidation of halides by hydrogen peroxide while adding a halide to hydrocarbons. They are classified as chloroperoxldase (CPO), bromoperoxidase (BPO) and iodoperoxidase (IPO) according to the halide which they oxidize.

  • CPO is heme-containing, vanadium-containing or metal-free.
  • BPO is from marine algae is vanadium-containing[1].

Structural highlights

The . The iodine atoms are coordinated to tyrosine residues: and [2]. Water molecules shown as red spheres.

Bromoperoxidase complex with VO4 and I- (purple) ions, 1qi9

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3D structures of haloperoxidase3D structures of haloperoxidase

Updated on 30-June-2024

ReferencesReferences

  1. Winter JM, Moore BS. Exploring the chemistry and biology of vanadium-dependent haloperoxidases. J Biol Chem. 2009 Jul 10;284(28):18577-81. doi: 10.1074/jbc.R109.001602. Epub, 2009 Apr 10. PMID:19363038 doi:http://dx.doi.org/10.1074/jbc.R109.001602
  2. Weyand M, Hecht H, Kiess M, Liaud M, Vilter H, Schomburg D. X-ray structure determination of a vanadium-dependent haloperoxidase from Ascophyllum nodosum at 2.0 A resolution. J Mol Biol. 1999 Oct 29;293(3):595-611. PMID:10543953 doi:10.1006/jmbi.1999.3179

Proteopedia Page Contributors and Editors (what is this?)Proteopedia Page Contributors and Editors (what is this?)

Michal Harel, Alexander Berchansky