Enzymatic properties of cytochrome P450 catalyzing 3′-hydroxylation of naringenin from the white-rot fungus Phanerochaete chrysosporium

Noriyuki Kasai, Shin ichi Ikushiro, Shinji Hirosue, Akira Arisawa, Hirofumi Ichinose, Hiroyuki Wariishi, Miho Ohta, Toshiyuki Sakaki

研究成果: ジャーナルへの寄稿記事

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We cloned full-length cDNAs of more than 130 cytochrome P450s (P450s) derived from Phanerochaete chrysosporium, and successfully expressed 70 isoforms using a co-expression system of P. chrysosporium P450 and yeast NADPH-P450 reductase in Saccharomyces cerevisiae. Of these P450s, a microsomal P450 designated as PcCYP65a2 consists of 626 amino acid residues with a molecular mass of 68.3 kDa. Sequence alignment of PcCYP65a2 and human CYP1A2 revealed a unique structure of PcCYP65a2. Functional analysis of PcCYP65a2 using the recombinant S. cerevisiae cells demonstrated that this P450 catalyzes 3′-hydroxylation of naringenin to yield eriodictyol, which has various biological and pharmacological properties. In addition, the recombinant S. cerevisiae cells expressing PcCYP65a2 metabolized such polyaromatic compounds as dibenzo-p-dioxin (DD), 2-monochloroDD, biphenyl, and naphthalene. These results suggest that PcCYP65a2 is practically useful for both bioconversion and bioremediation.

元の言語英語
ページ(範囲)103-108
ページ数6
ジャーナルBiochemical and Biophysical Research Communications
387
発行部数1
DOI
出版物ステータス出版済み - 9 11 2009

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All Science Journal Classification (ASJC) codes

  • Biophysics
  • Biochemistry
  • Molecular Biology
  • Cell Biology

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