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. 2009 Feb 13;10(3):545-52.
doi: 10.1002/cbic.200800595.

The protein environment drives selectivity for sulfide oxidation by an artificial metalloenzyme

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The protein environment drives selectivity for sulfide oxidation by an artificial metalloenzyme

Pierre Rousselot-Pailley et al. Chembiochem. .

Abstract

MAGIC Mn-salen mETALLOZYME: The design of an original, artificial, inorganic, complex-protein adduct, has led to a better understanding of the synergistic effects of both partners. The exclusive formation of sulfoxides by the hybrid biocatalyst, as opposed to sulfone in the case of the free inorganic complex, highlights the modulating role of the inorganic-complex-binding site in the protein. Artificial metalloenzymes based on the incorporation of Mn-salen complexes into human serum albumin display high efficiency and selectivity for sulfoxide production during sulfide oxidation. The reactions carried out by the artificial metallozymes are comparable to those carried out by natural biocatalysis. We have found that the polarity of the protein environment is crucial for selectivity and that a synergy between both partners of the hybrid results in the novel activity.

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