Novel Terpenoids, Trichoderonic Acids A and B Isolated from Trichoderma virens, Are Selective Inhibitors of Family X DNA Polymerases

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概要

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• Trichoderonic acids A (1) and B (2), novel terpenoids, and (+)-heptelidic acid (3) isolated from cultures of a fungus, Trichoderma virens, and their structures were identified by spectroscopic analysis. These compounds selectively and competitively inhibited the activities of mammalian DNA polymerases β, λ (pols β, λ), and terminal deoxynucleotidyl transferase (TdT) in family X of pols, and compound 2 was a stronger inhibitor than compound 1 or 3. On the other hand, compounds 1–3 did not influence the activities of the other families (A-, B-, and the Y-families) of the mammalian pols tested, and showed no effect on the activities of plant pol α, fish pol δ, prokaryotic pol, or the other DNA metabolic enzymes tested. Compound 2 suppressed the growth of two human cancer cell lines, cervix carcinoma cells (HeLa) and breast carcinoma cells (MCF-7). The results suggest that these compounds identified inhibition among the families of mammalian pols.

著者

• Yamaguchi Yasuhiro

  Department of Applied Biological Science, Tokyo University of Science

• Manita Daisuke

  Department of Applied Biological Science, Tokyo University of Science

• Takeuchi Toshifumi

  Department of Applied Biological Science, Tokyo University of Science

• KURAMOCHI Kouji

  Graduate School of Life and Environmental Science, Kyoto Prefectural University

• KURIYAMA Isoko

  Laboratory of Food & Nutritional Sciences, Department of Nutritional Science, Kobe-Gakuin University

• SUGAWARA Fumio

  Department of Applied Biological Science, Tokyo University of Science

• YOSHIDA Hiromi

  Laboratory of Food & Nutritional Sciences, Department of Nutritional Science, Kobe-Gakuin University

• MIZUSHINA Yoshiyuki

  Laboratory of Food & Nutritional Sciences, Department of Nutritional Science, Kobe-Gakuin University

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