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Dynamics of metal complex binding in relation to catalytic activity and selectivity of an artificial metalloenzyme

ChemRxiv. 2020-03; 
Lara Villarino, Shreyans Chordia, Lur Alonso-Cotchico, Eswar R. Reddem, Andy-Mark Thunnissen, Jean-Didier Maréchal, Gerard Roelfes
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Gene Synthesis … DNA sequencing was carried out by GATC-Biotech (Berlin, Germany). FPLC columns were purchased from GE Healthcare. Gene Optimization The synthesized gene of LmrR was ordered from GenScript (USA). The codon usage was adapted to the codon bias of E. coli genes … Get A Quote

摘要

Structural dynamics is important in enzymes to achieve optimal complementarity to the activated complex  of the catalyzed reaction and, hence, give rise to rate acceleration and (enantio)selectivity. Here, we present  an  artificial  metalloenzyme  based  on  the  transcriptional  regulator  LmrR  that  exhibits  a  unique  form  of  structural dynamics involving the positioning of its abiological metal cofactor. The position of the cofactor,  in  turn, was  found  to be  related  to  the preferred catalytic  reactivity, which is either  the enantioselective  Friedel‐Crafts  alkylation  of  indoles  with  β‐substituted  enon... More

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