Structural evidence for a reaction intermediate mimic in the active site of a sulfite dehydrogenase
Résumé
By combining X-ray crystallography, electron paramagnetic resonance techniques and density functional theory-based modelling, we provide evidence for a direct coordination of the product analogue, phosphate, to the molybdenum active site of a sulfite dehydrogenase. This interaction is mimicking the still experimentally uncharacterized reaction intermediate proposed to arise during the catalytic cycle of this class of enzymes. This work opens new perspectives for further deciphering the reaction mechanism of this nearly ubiquitous class of oxidoreductases.
Domaines
Biologie structurale [q-bio.BM]
Fichier principal
22 Djeghader 2020 ChemComm 31P HYSCORE Mo(V) TtSDH.pdf (1.82 Mo)
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| Origine | Publication financée par une institution |
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