2ji3

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X-RAY STRUCTURE OF THE IRON-PEROXIDE INTERMEDIATE OF SUPEROXIDE REDUCTASE (E114A MUTANT) FROM DESULFOARCULUS BAARSIIX-RAY STRUCTURE OF THE IRON-PEROXIDE INTERMEDIATE OF SUPEROXIDE REDUCTASE (E114A MUTANT) FROM DESULFOARCULUS BAARSII

Structural highlights

2ji3 is a 4 chain structure with sequence from Desulfarculus baarsii. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:, , ,
Activity:Superoxide reductase, with EC number 1.15.1.2
Resources:FirstGlance, OCA, RCSB, PDBsum

Evolutionary Conservation

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

Publication Abstract from PubMed

Iron-peroxide intermediates are central in the reaction cycle of many iron-containing biomolecules. We trapped iron(III)-(hydro)peroxo species in crystals of superoxide reductase (SOR), a nonheme mononuclear iron enzyme that scavenges superoxide radicals. X-ray diffraction data at 1.95 angstrom resolution and Raman spectra recorded in crystallo revealed iron-(hydro)peroxo intermediates with the (hydro)peroxo group bound end-on. The dynamic SOR active site promotes the formation of transient hydrogen bond networks, which presumably assist the cleavage of the iron-oxygen bond in order to release the reaction product, hydrogen peroxide.

Raman-assisted crystallography reveals end-on peroxide intermediates in a nonheme iron enzyme.,Katona G, Carpentier P, Niviere V, Amara P, Adam V, Ohana J, Tsanov N, Bourgeois D Science. 2007 Apr 20;316(5823):449-53. PMID:17446401[1]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

See Also

References

  1. Katona G, Carpentier P, Niviere V, Amara P, Adam V, Ohana J, Tsanov N, Bourgeois D. Raman-assisted crystallography reveals end-on peroxide intermediates in a nonheme iron enzyme. Science. 2007 Apr 20;316(5823):449-53. PMID:17446401 doi:316/5823/449

2ji3, resolution 1.95Å

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