Translesion DNA Synthesis and Hsp90

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  • Yamashita Takayuki
    Laboratory of Molecular Genetics, The Institute for Molecular and Cellular Regulation, Gunma University
  • Oda Tsukasa
    Laboratory of Molecular Genetics, The Institute for Molecular and Cellular Regulation, Gunma University
  • Sekimoto Takayuki
    Laboratory of Molecular Genetics, The Institute for Molecular and Cellular Regulation, Gunma University

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Abstract

Translesion DNA synthesis (TLS) is an essential mechanism for DNA damage tolerance during genome duplication by bypassing DNA lesions with use of specialized low-fidelity polymerases. Thus, TLS is inherently mutagenic, which is presumed to be involved in cancer initiation and progression. Increasing attention has focused on post-translational regulatory mechanisms of TLS polymerases, including covalent modification (e.g., phosphorylation) and proteasomal degradation. In this review article, we focus on our findings on Hsp90-mediated regulation of TLS polymerases and discuss potential pharmacological effects of Hsp90 inhibitors in cancer therapy.<br>

Journal

  • Genes and Environment

    Genes and Environment 34 (2), 89-93, 2012

    The Japanese Environmental Mutagen Society

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