More efficient enzymatic cascade reactions by spatially confining enzymes via the SpyTag/SpyCatcher technology

Xuanru Zhong, Yunjian Ma*, Xizhen Zhang, Jiahui Zhang, Bin Wu, Frank Hollmann, Yonghua Wang

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

2 Citations (Scopus)
5 Downloads (Pure)

Abstract

Hydrocarbon synthesis from (waste)oils enabled by a cascade of lipase-catalysed hydrolysis and decarboxylase-catalysed decarboxylation has become an active area of research en route to alternative, biobased fuels. However, Poor substrate transport efficiency is a major issue causing low reaction rates. This study focused on a protein self-assembly strategy based on SpyTag/SpyCatcher to overcome diffusion limitations. For this, two fusion proteins, TLL-Linker-SpyCatcher based on the lipase from Thermomyces lanuginosus and CvFAP-Linker-SpyTag based on the fatty acid photodecarboxylase from Chlorella variabilis were designed. A covalent multi-enzyme complex (TLL-CvFAP) was formed spontaneously by self-assembly of each enzyme. The effects of temperature, pH and molar ratio of self-assembled components on assembly efficiency were investigated. The results showed that the multi-enzyme complex TLL-CvFAP reached about 60% after 12 h of assembly, and the enzyme activity of the multienzyme complex was increased by about 50% compared to that of the corresponding non-assembled enzymes. Under optimized conditions 10 mM soybean oil were converted into 25 mM of the corresponding hydrocarbons, suggesting a good potential of biofuel synthesis.

Original languageEnglish
Article number112188
Number of pages7
JournalMolecular Catalysis
Volume521
DOIs
Publication statusPublished - 2022

Bibliographical note

Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

Keywords

  • CvFAP
  • Hydrocarbon biofuels
  • Multienzyme complex
  • SpyTag/SpyCatcher
  • TLL

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