English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/165633
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:


Multiple implications of an active site phenylalanine in the catalysis of aryl-alcohol oxidase

AuthorsCarro, Juan; Amengual-Rigo, P.; Sancho, Ferrán; Medina, Milagros; Guallar, Victor; Ferreira, Patricia ; Martínez, Ángel T.
Issue Date25-May-2018
PublisherNature Publishing Group
CitationSci Rep. 8: 8121 (2018)
AbstractAryl-alcohol oxidase (AAO) has demonstrated to be an enzyme with a bright future ahead due to its biotechnological potential in deracemisation of chiral compounds, production of bioplastic precursors and other reactions of interest. Expanding our understanding on the AAO reaction mechanisms, through the investigation of its structure-function relationships, is crucial for its exploitation as an industrial biocatalyst. In this regard, previous computational studies suggested an active role for AAO Phe397 at the active-site entrance. This residue is located in a loop that partially covers the access to the cofactor forming a bottleneck together with two other aromatic residues. Kinetic and affinity spectroscopic studies, complemented with computational simulations using the recently developed adaptive-PELE technology, reveal that the Phe397 residue is important for product release and to help the substrates attain a catalytically relevant position within the active-site cavity. Moreover, removal of aromaticity at the 397 position impairs the oxygen-reduction activity of the enzyme. Experimental and computational findings agree very well in the timing of product release from AAO, and the simulations help to understand the experimental results. This highlights the potential of adaptive-PELE to provide answers to the questions raised by the empirical results in the study of enzyme mechanisms.
Description12 p.-7 fig.-1 tab.
Publisher version (URL)https://dx.doi.org/ 10.1038/s41598-018-26445-x
Appears in Collections:(CIB) Artículos
Files in This Item:
File Description SizeFormat 
Scientific Reports_Carro_2018.pdfArtículo principal2,48 MBAdobe PDFThumbnail
Show full item record
Review this work

Related articles:

WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.