Heterotrimeric complex of replication protein A, a single-stranded DNA binding protein, from the silkworm, Bombyx mori

Ryohei Sugahara, Hiroaki Mon, Jun Yamashita, Hitoshi Mitsunobu, Jae Man Lee, Yutaka Kawaguchi, Katsumi Koga, Takahiro Kusakabe

研究成果: Contribution to journalArticle査読

2 被引用数 (Scopus)

抄録

Replication protein A (Rpa) is a heterotrimeric protein complex, composed of three tightly associated subunits of RPA70 (Rpa1), RPA32 (Rpa2) and RPA14 (Rpa3) in the case of human cells. The Rpa is known to be required for almost all aspects of cellular DNA metabolism. In the present study, we isolated and characterized the cDNAs orthologous to the Homo sapience RPA2 and RPA3, BmRPA2 and BmRPA3, respectively, from the silkworm, Bombyx mori. Each gene has a single conserved OB-fold domain. Although there was a higher level of homology among Rpa2s from different species, those of Rpa3s were very low. Furthermore, the analysis using yeast two-hybrid system revealed that the BmRpa2 and BmRpa3 form a tight heterotrimeric complex with BmRpa1. In addition, we confirmed the silkworm Rpa complex binds single-stranded DNA, but not double-stranded DNA.

本文言語英語
ページ(範囲)129-135
ページ数7
ジャーナルJournal of Insect Biotechnology and Sericology
76
3
出版ステータス出版済み - 10 1 2007

All Science Journal Classification (ASJC) codes

  • バイオテクノロジー
  • 応用微生物学とバイオテクノロジー
  • ビジネス、管理および会計(全般)
  • 農業および生物科学(全般)
  • 昆虫科学
  • 産業および生産工学

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