Molecular characterization of cytochrome P450 catalyzing hydroxylation of benzoates from the white-rot fungus Phanerochaete chrysosporium

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Abstract

We cloned full-length cDNA (PcCYP1f) encoding one of the cytochrome P450s in the lignin-degrading basidiomycete Phanerochaete chrysosporium, which showed high homology to P450s in the CYP53 family. PcCYP1f was expressed as an active microsomal protein using the methylotrophic yeast Pichia pastoris expression system. Using the microsomal fraction containing PcCYP1f, a typical P450 CO-difference spectrum was obtained with absorption maximum at 448 nm. Recombinant PcCYP1f catalyzed the hydroxylation of benzoic acid into 4-hydroxybenzoic acid in the presence of NADPH and P. chrysosporium cytochrome P450 oxidoreductase. In contrast to other CYP53 P450s, this enzyme was shown to catalyze the hydroxylation of 3-hydroxybenzoate into 3,4-dihydroxybenzoate. Furthermore, 2- and 3-methylbenzoate were also shown to be substrates of PcCYP1f. This is the first report showing the expression of a functionally active Phanerochaete P450. Finally, real-time quantitative PCR analysis revealed that PcCYP1f is induced at a transcriptional level by exogenous addition of benzoic acid.

Original languageEnglish
Pages (from-to)1184-1190
Number of pages7
JournalBiochemical and Biophysical Research Communications
Volume334
Issue number4
DOIs
Publication statusPublished - Sep 9 2005

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Phanerochaete
Hydroxylation
Benzoic Acid
Benzoates
Fungi
Cytochrome P-450 Enzyme System
Hydroxybenzoates
Lignin
Carbon Monoxide
Cytochromes
NADP
Yeast
Basidiomycota
Oxidoreductases
Pichia
Complementary DNA
Real-Time Polymerase Chain Reaction
Substrates
Enzymes
Yeasts

All Science Journal Classification (ASJC) codes

  • Biophysics
  • Biochemistry
  • Molecular Biology
  • Cell Biology

Cite this

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title = "Molecular characterization of cytochrome P450 catalyzing hydroxylation of benzoates from the white-rot fungus Phanerochaete chrysosporium",
abstract = "We cloned full-length cDNA (PcCYP1f) encoding one of the cytochrome P450s in the lignin-degrading basidiomycete Phanerochaete chrysosporium, which showed high homology to P450s in the CYP53 family. PcCYP1f was expressed as an active microsomal protein using the methylotrophic yeast Pichia pastoris expression system. Using the microsomal fraction containing PcCYP1f, a typical P450 CO-difference spectrum was obtained with absorption maximum at 448 nm. Recombinant PcCYP1f catalyzed the hydroxylation of benzoic acid into 4-hydroxybenzoic acid in the presence of NADPH and P. chrysosporium cytochrome P450 oxidoreductase. In contrast to other CYP53 P450s, this enzyme was shown to catalyze the hydroxylation of 3-hydroxybenzoate into 3,4-dihydroxybenzoate. Furthermore, 2- and 3-methylbenzoate were also shown to be substrates of PcCYP1f. This is the first report showing the expression of a functionally active Phanerochaete P450. Finally, real-time quantitative PCR analysis revealed that PcCYP1f is induced at a transcriptional level by exogenous addition of benzoic acid.",
author = "Fumiko Matsuzaki and Hiroyuki Wariishi",
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AU - Matsuzaki, Fumiko

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N2 - We cloned full-length cDNA (PcCYP1f) encoding one of the cytochrome P450s in the lignin-degrading basidiomycete Phanerochaete chrysosporium, which showed high homology to P450s in the CYP53 family. PcCYP1f was expressed as an active microsomal protein using the methylotrophic yeast Pichia pastoris expression system. Using the microsomal fraction containing PcCYP1f, a typical P450 CO-difference spectrum was obtained with absorption maximum at 448 nm. Recombinant PcCYP1f catalyzed the hydroxylation of benzoic acid into 4-hydroxybenzoic acid in the presence of NADPH and P. chrysosporium cytochrome P450 oxidoreductase. In contrast to other CYP53 P450s, this enzyme was shown to catalyze the hydroxylation of 3-hydroxybenzoate into 3,4-dihydroxybenzoate. Furthermore, 2- and 3-methylbenzoate were also shown to be substrates of PcCYP1f. This is the first report showing the expression of a functionally active Phanerochaete P450. Finally, real-time quantitative PCR analysis revealed that PcCYP1f is induced at a transcriptional level by exogenous addition of benzoic acid.

AB - We cloned full-length cDNA (PcCYP1f) encoding one of the cytochrome P450s in the lignin-degrading basidiomycete Phanerochaete chrysosporium, which showed high homology to P450s in the CYP53 family. PcCYP1f was expressed as an active microsomal protein using the methylotrophic yeast Pichia pastoris expression system. Using the microsomal fraction containing PcCYP1f, a typical P450 CO-difference spectrum was obtained with absorption maximum at 448 nm. Recombinant PcCYP1f catalyzed the hydroxylation of benzoic acid into 4-hydroxybenzoic acid in the presence of NADPH and P. chrysosporium cytochrome P450 oxidoreductase. In contrast to other CYP53 P450s, this enzyme was shown to catalyze the hydroxylation of 3-hydroxybenzoate into 3,4-dihydroxybenzoate. Furthermore, 2- and 3-methylbenzoate were also shown to be substrates of PcCYP1f. This is the first report showing the expression of a functionally active Phanerochaete P450. Finally, real-time quantitative PCR analysis revealed that PcCYP1f is induced at a transcriptional level by exogenous addition of benzoic acid.

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