9hun | pdb_00009hun
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Crystal structure of feruloyl esterase from Fusarium oxysporum G122S variant in complex with benzoic acid
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Structural highlights
FunctionPublication Abstract from PubMedMono(2-hydroxyethyl) terephthalate (MHET) esterases (MHETases) are enzymes implicated in polyethylene terephthalate (PET) biodegradation. The present study elucidates the structural determinants that result in increased MHET degradation by a feruloyl esterase, which has been engineered to resemble the MHETase active site. The crystal structures of the variant in apo- and benzoic acid bound states reveal the changes induced by the introduced mutation, specifically the formation of a hydrogen bond and a trans to cis isomerization of a peptide bond in the vicinity of the catalytic site. Molecular dynamics simulations demonstrate the stabilization of the loop harboring the engineered residue, as well as an expansion of the substrate binding cleft, which would facilitate accommodation of a broader variety of substrates, indicative of a promiscuous biocatalyst. Structural insights into an engineered feruloyl esterase with improved MHET degrading properties.,Karampa P, Makryniotis K, Sousani TI, Topakas E, Daskalakis V, Dimarogona M FEBS Lett. 2026 Mar 8. doi: 10.1002/1873-3468.70322. PMID:41797379[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. References
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This page was last modified 15:48, 1 April 2026.