Role of interaction between two silkworm RecA homologs in homologous DNA pairing

Takahiro Kusakabe, Yutaka Kawaguchi, Takuji Maeda, Katsumi Koga

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Recombinant BmRad51 and BmDmc1, silkworm homologs of the Escherichia coli RecA proteins catalyzing the homologous DNA pairing, were purified from E. coli cells carrying expression vectors. These possessed different enzymatic properties in the joint molecule formation between single-stranded circular DNA and homologous linear double-stranded DNA. The requirement of single-stranded circular DNA for the efficient reaction was twofold higher in BmRad51 than in BmDmc1. Although able to mediate the joint molecule formation independently, a complex of the two enzymes formed prior to single-stranded DNA binding was found to have augmented efficiency of the pairing reaction.

Original languageEnglish
Pages (from-to)39-44
Number of pages6
JournalArchives of Biochemistry and Biophysics
Volume388
Issue number1
DOIs
Publication statusPublished - Apr 1 2001

All Science Journal Classification (ASJC) codes

  • Biophysics
  • Biochemistry
  • Molecular Biology

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