Disturbed biopterin and folate metabolism in the Qdpr-deficient mouse

Feng Xu, Yusuke Sudo, Sho Sanechika, Junpei Yamashita, Sho Shimaguchi, Shun Ichiro Honda, Chiho Sumi-Ichinose, Masayo Mori-Kojima, Rieko Nakata, Tadaomi Furuta, Minoru Sakurai, Masahiro Sugimoto, Tomoyoshi Soga, Kazunao Kondo, Hiroshi Ichinose

研究成果: Article査読

14 被引用数 (Scopus)

抄録

Quinonoid dihydropteridine reductase (QDPR) catalyzes the regeneration of tetrahydrobiopterin (BH4), a cofactor for monoamine synthesis, phenylalanine hydroxylation and nitric oxide production. Here, we produced and analyzed a transgenic Qdpr-/- mouse model. Unexpectedly, the BH4 contents in the Qdpr-/- mice were not decreased and even increased in some tissues, whereas those of the oxidized form dihydrobiopterin (BH2) were significantly increased. We demonstrated that unlike the wild-type mice, dihydrofolate reductase regenerated BH4 from BH2 in the mutants. Furthermore, we revealed wide alterations in folate-associated metabolism in the Qdpr-/- mice, which suggests an interconnection between folate and biopterin metabolism in the transgenic mouse model.

本文言語English
ページ(範囲)3924-3931
ページ数8
ジャーナルFEBS Letters
588
21
DOI
出版ステータスPublished - 03-11-2014

All Science Journal Classification (ASJC) codes

  • 生物理学
  • 構造生物学
  • 生化学
  • 分子生物学
  • 遺伝学
  • 細胞生物学

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