A broad-range yeast expression system reveals Arxula adeninivorans expressing a fungal self-sufficient cytochrome P450 monooxygenase as an excellent whole-cell biocatalyst

Chrispian W. Theron, Michel Labuschagné, Rama Krishna Gudiminchi, Jacobus Albertyn, Martha S. Smit

Research output: Contribution to journalArticleResearchpeer-review

Abstract

The feasibility of using a single vector to clone a cytochrome P450 monooxygenase (P450) in different yeasts and then compare whole-cell hydroxylase activity was investigated. A broad-range yeast expression vector using the ylTEFp to drive expression of the cloned gene and the scTEFp to drive the hygromycin resistance marker gene was used to clone the genes encoding two self-sufficient P450s, CYP102A1 and CYP505A1. Both genes were cloned into Saccharomyces cerevisiae, Kluyveromyces marxianus, Yarrowia lipolytica (two strains) and Arxula adeninivorans. 4-Hexylbenzoic acid (HBA), which is subterminally hydroxylated by both CYP102A1 and CYP505A1, was used to compare whole-cell hydroxylase activity of transformants. Kluyveromyces marxianus and A. adeninivorans exhibited activity with both CYP102A1 and CYP505A1, while S. cerevisiae only displayed CYP102A1 activity and Y. lipolytica only CYP505A1 activity. The highest CYP102A1 activity (0.8 mM HBA converted in 24 h) was observed with concentrated resting-cell suspensions of S. cerevisiae. The CYP505A1 activity observed with growing cultures of A. adeninivorans was however at least 12 times higher than the CYP102A1 activity of S. cerevisiae with up to 2 mM HBA converted within 6 h. The use of K. marxianus and A. adeninivorans for P450 expression has not previously been reported.

Original languageEnglish
Pages (from-to)556-566
Number of pages11
JournalFEMS yeast research
Volume14
Issue number4
DOIs
Publication statusPublished - 2014
Externally publishedYes

Fingerprint

Mixed Function Oxygenases
Cytochrome P-450 Enzyme System
Saccharomyces cerevisiae
Yeasts
Kluyveromyces
Enzymes
Acids
Clone Cells
Yarrowia
Genes
Suspensions
Gene Expression

Keywords

  • Ascomycetous yeasts
  • Broad-range expression vector
  • Co-expression
  • Heterologous expression
  • Self-sufficient cytochrome P450 monooxygenases
  • Whole-cell biocatalysis

ASJC Scopus subject areas

  • Applied Microbiology and Biotechnology
  • Microbiology
  • Medicine(all)

Cite this

A broad-range yeast expression system reveals Arxula adeninivorans expressing a fungal self-sufficient cytochrome P450 monooxygenase as an excellent whole-cell biocatalyst. / Theron, Chrispian W.; Labuschagné, Michel; Gudiminchi, Rama Krishna; Albertyn, Jacobus; Smit, Martha S.

In: FEMS yeast research, Vol. 14, No. 4, 2014, p. 556-566.

Research output: Contribution to journalArticleResearchpeer-review

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abstract = "The feasibility of using a single vector to clone a cytochrome P450 monooxygenase (P450) in different yeasts and then compare whole-cell hydroxylase activity was investigated. A broad-range yeast expression vector using the ylTEFp to drive expression of the cloned gene and the scTEFp to drive the hygromycin resistance marker gene was used to clone the genes encoding two self-sufficient P450s, CYP102A1 and CYP505A1. Both genes were cloned into Saccharomyces cerevisiae, Kluyveromyces marxianus, Yarrowia lipolytica (two strains) and Arxula adeninivorans. 4-Hexylbenzoic acid (HBA), which is subterminally hydroxylated by both CYP102A1 and CYP505A1, was used to compare whole-cell hydroxylase activity of transformants. Kluyveromyces marxianus and A. adeninivorans exhibited activity with both CYP102A1 and CYP505A1, while S. cerevisiae only displayed CYP102A1 activity and Y. lipolytica only CYP505A1 activity. The highest CYP102A1 activity (0.8 mM HBA converted in 24 h) was observed with concentrated resting-cell suspensions of S. cerevisiae. The CYP505A1 activity observed with growing cultures of A. adeninivorans was however at least 12 times higher than the CYP102A1 activity of S. cerevisiae with up to 2 mM HBA converted within 6 h. The use of K. marxianus and A. adeninivorans for P450 expression has not previously been reported.",
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