In vivo evidence for translesion synthesis by the replicative DNA polymerase δ

Kouji Hirota, Masataka Tsuda, Mohiuddin, Toshiki Tsurimoto, Isadora S. Cohen, Zvi Livneh, Kaori Kobayashi, Takeo Narita, Kana Nishihara, Junko Murai, Shigenori Iwai, Guillaume Guilbaud, Julian E. Sale, Shunichi Takeda

研究成果: ジャーナルへの寄稿記事

19 引用 (Scopus)

抄録

The intolerance of DNA polymerase δ (Polδ) to incorrect base pairing contributes to its extremely high accuracy during replication, but is believed to inhibit translesion synthesis (TLS). However, chicken DT40 cells lacking the POLD3 subunit of Polδ are deficient in TLS. Previous genetic and biochemical analysis showed that POLD3 may promote lesion bypass by Polδ itself independently of the translesion polymerase Polζ of which POLD3 is also a subunit. To test this hypothesis, we have inactivated Polδ proofreading in pold3 cells. This significantly restored TLS in pold3 mutants, enhancing dA incorporation opposite abasic sites. Purified proofreading-deficient human Polδ holoenzyme performs TLS of abasic sites in vitro much more efficiently than the wild type enzyme, with over 90% of TLS events resulting in dA incorporation. Furthermore, proofreading deficiency enhances the capability of Polδ to continue DNA synthesis over UV lesions both in vivo and in vitro. These data support Polδ contributing to TLS in vivo and suggest that the mutagenesis resulting from loss of Polδ proofreading activity may in part be explained by enhanced lesion bypass.

元の言語英語
ページ(範囲)7242-7250
ページ数9
ジャーナルNucleic acids research
44
発行部数15
DOI
出版物ステータス出版済み - 9 6 2016

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DNA-Directed DNA Polymerase
Holoenzymes
Mutagenesis
Base Pairing
Molecular Biology
Chickens
DNA
Enzymes
In Vitro Techniques

All Science Journal Classification (ASJC) codes

  • Genetics

これを引用

Hirota, K., Tsuda, M., Mohiuddin, Tsurimoto, T., Cohen, I. S., Livneh, Z., ... Takeda, S. (2016). In vivo evidence for translesion synthesis by the replicative DNA polymerase δ. Nucleic acids research, 44(15), 7242-7250. https://doi.org/10.1093/nar/gkw439

In vivo evidence for translesion synthesis by the replicative DNA polymerase δ. / Hirota, Kouji; Tsuda, Masataka; Mohiuddin, ; Tsurimoto, Toshiki; Cohen, Isadora S.; Livneh, Zvi; Kobayashi, Kaori; Narita, Takeo; Nishihara, Kana; Murai, Junko; Iwai, Shigenori; Guilbaud, Guillaume; Sale, Julian E.; Takeda, Shunichi.

:: Nucleic acids research, 巻 44, 番号 15, 06.09.2016, p. 7242-7250.

研究成果: ジャーナルへの寄稿記事

Hirota, K, Tsuda, M, Mohiuddin, , Tsurimoto, T, Cohen, IS, Livneh, Z, Kobayashi, K, Narita, T, Nishihara, K, Murai, J, Iwai, S, Guilbaud, G, Sale, JE & Takeda, S 2016, 'In vivo evidence for translesion synthesis by the replicative DNA polymerase δ', Nucleic acids research, 巻. 44, 番号 15, pp. 7242-7250. https://doi.org/10.1093/nar/gkw439
Hirota, Kouji ; Tsuda, Masataka ; Mohiuddin, ; Tsurimoto, Toshiki ; Cohen, Isadora S. ; Livneh, Zvi ; Kobayashi, Kaori ; Narita, Takeo ; Nishihara, Kana ; Murai, Junko ; Iwai, Shigenori ; Guilbaud, Guillaume ; Sale, Julian E. ; Takeda, Shunichi. / In vivo evidence for translesion synthesis by the replicative DNA polymerase δ. :: Nucleic acids research. 2016 ; 巻 44, 番号 15. pp. 7242-7250.
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abstract = "The intolerance of DNA polymerase δ (Polδ) to incorrect base pairing contributes to its extremely high accuracy during replication, but is believed to inhibit translesion synthesis (TLS). However, chicken DT40 cells lacking the POLD3 subunit of Polδ are deficient in TLS. Previous genetic and biochemical analysis showed that POLD3 may promote lesion bypass by Polδ itself independently of the translesion polymerase Polζ of which POLD3 is also a subunit. To test this hypothesis, we have inactivated Polδ proofreading in pold3 cells. This significantly restored TLS in pold3 mutants, enhancing dA incorporation opposite abasic sites. Purified proofreading-deficient human Polδ holoenzyme performs TLS of abasic sites in vitro much more efficiently than the wild type enzyme, with over 90{\%} of TLS events resulting in dA incorporation. Furthermore, proofreading deficiency enhances the capability of Polδ to continue DNA synthesis over UV lesions both in vivo and in vitro. These data support Polδ contributing to TLS in vivo and suggest that the mutagenesis resulting from loss of Polδ proofreading activity may in part be explained by enhanced lesion bypass.",
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AU - Iwai, Shigenori

AU - Guilbaud, Guillaume

AU - Sale, Julian E.

AU - Takeda, Shunichi

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