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The synthetic potential of fungal feruloyl esterases: A correlation with current classification systems and predicted structural properties

  • Io Antonopoulou
  • , Adiphol Dilokpimol
  • , Laura Iancu
  • , Miia R. Mäkelä
  • , Simona Varriale
  • , Gabriella Cerullo
  • , Silvia Hüttner
  • , Stefan Uthoff
  • , Peter Jütten
  • , Alexander Piechot
  • , Alexander Steinbüchel
  • , Lisbeth Olsson
  • , Vincenza Faraco
  • , Kristiina S. Hildén
  • , Ronald P. de Vries
  • , Ulrika Rova
  • , Paul Christakopoulos*
  • *Corresponding author for this work
  • Luleå University of Technology
  • Utrecht University
  • DuPont
  • University of Helsinki
  • University of Naples Federico II
  • Chalmers University of Technology
  • University of Münster
  • Taros Chemicals GmbH & Co KG
  • King Abdulaziz University

Research output: Contribution to journalArticleScientificpeer-review

Abstract

Twenty-eight fungal feruloyl esterases (FAEs) were evaluated for their synthetic abilities in a ternary system of n-hexane: t-butanol: 100 mM MOPS-NaOH pH 6.0 forming detergentless microemulsions. Five main derivatives were synthesized, namely prenyl ferulate, prenyl caffeate, butyl ferulate, glyceryl ferulate, and L-arabinose ferulate, offering, in general, higher yields when more hydrophilic alcohol substitutions were used. Acetyl xylan esterase-related FAEs belonging to phylogenetic subfamilies (SF) 5 and 6 showed increased synthetic yields among tested enzymes. In particular, it was shown that FAEs belonging to SF6 generally transesterified aliphatic alcohols more efficiently while SF5 members preferred bulkier L-arabinose. Predicted surface properties and structural characteristics were correlated with the synthetic potential of selected tannase-related, acetyl-xylan-related, and lipase-related FAEs (SF1-2,-6,-7 members) based on homology modeling and small molecular docking simulations.

Original languageEnglish
Article number242
JournalCatalysts
Volume8
Issue number6
DOIs
Publication statusPublished - 7 Jun 2018
MoE publication typeA1 Journal article-refereed

Funding

This work was supported by the European Union, grant agreement no: 613868 (OPTIBIOCAT).

Keywords

  • Antioxidants
  • Butyl ferulate
  • Feruloyl esterase
  • Glyceryl ferulate
  • L-arabinose ferulate
  • Phylogenetic classification
  • Prenyl caffeate
  • Prenyl ferulate
  • Sugar esters
  • Transesterification

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