Interaction between proliferating cell nuclear antigen (PCNA) and a DnaJ induced by DNA damage

Taichi Yamamoto, Yoko Mori, Toyotaka Ishibashi, Yukinobu Uchiyama, Tadamasa Ueda, Tsuyu Ando, Junji Hashimoto, Seisuke Kimura, Kengo Sakaguchi*

*Corresponding author for this work

Research output: Contribution to journalJournal Articlepeer-review

Abstract

Proliferating cell nuclear antigen (PCNA) is an essential protein for both DNA replication and DNA repair. In the present study using two-hybrid analysis with PCNA from rice, Oryza sativa L. cv. Nipponbare (OsPCNA), we found that OsPCNA interacted with rice DnaJ protein. We have identified DnaJ and designated it as OsDnaJ. OsDnaJ was able to bind to OsPCNA in vitro. Transcripts of OsDnaJ were found to be strongly expressed in the proliferating cells. mRNA of DnaJ was induced by UV and DNA-damaging agents such as H2O2. The expression patterns of OsPCNA were almost the same as OsDnaJ. The relationship between OsPCNA and OsDnaJ is discussed.

Original languageEnglish
Pages (from-to)91-97
Number of pages7
JournalJournal of Plant Research
Volume118
Issue number2
DOIs
Publication statusPublished - Jun 2005
Externally publishedYes

Keywords

  • Chaperone
  • DNA damage
  • DnaJ
  • PCNA

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