4ko2

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Low X-ray dose structure of H2-activated anaerobically purified Dm. baculatum [NiFeSe]-hydrogenase after crystallization under airLow X-ray dose structure of H2-activated anaerobically purified Dm. baculatum [NiFeSe]-hydrogenase after crystallization under air

Structural highlights

4ko2 is a 4 chain structure with sequence from Desulfomicrobium baculatum and Desulfomicrobium baculatum DSM 4028. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:X-ray diffraction, Resolution 1.6Å
Ligands:, , , , , ,
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

PHSS_DESBA

Publication Abstract from PubMed

This study shows how the NiFeSe site of an anaerobically purified O2-resistant hydrogenase reacts with air to give a seleninate as the first product. Less oxidized states of the active site are readily reduced in the presence of X-rays. Reductive enzyme activation requires an efficient pathway for water escape.

Structural foundations for the O2 resistance of Desulfomicrobium baculatum [NiFeSe]-hydrogenase.,Volbeda A, Amara P, Iannello M, De Lacey AL, Cavazza C, Fontecilla-Camps JC Chem Commun (Camb). 2013 Jul 11;49(63):7061-3. doi: 10.1039/c3cc43619e. PMID:23811828[1]

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

References

  1. Volbeda A, Amara P, Iannello M, De Lacey AL, Cavazza C, Fontecilla-Camps JC. Structural foundations for the O2 resistance of Desulfomicrobium baculatum [NiFeSe]-hydrogenase. Chem Commun (Camb). 2013 Jul 11;49(63):7061-3. doi: 10.1039/c3cc43619e. PMID:23811828 doi:10.1039/c3cc43619e

4ko2, resolution 1.60Å

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OCA