The P3 domain of E. coli ribonuclease P RNA can be truncated and replaced

Terumichi Tanaka*, Naomi Kanda, Yo Kikuchi

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


We prepared some truncated and replaced P3 mutants of Escherichia coli RNase P RNA, and used them to examine the RNase P ribozyme and holoenzyme reactions of a pre-tRNA substrate. The results indicated that mutations in the P3 domain did not affect the cleavage site selection of the pre-tRNA substrate, but did affect the efficiency of cleavage of the substrate. Results of stepwise truncation of the P3 domain and its replacement by the TAR sequence showed that the P3 domain of the E. coli RNase P was able to be truncated to certain length and was replaceable, but could not be deleted in the ribozyme.

Original languageEnglish
Pages (from-to)101-104
Number of pages4
JournalFEBS Letters
Issue number1-2
Publication statusPublished - 2004 Nov 5
Externally publishedYes


  • E. coli
  • Holoenzyme
  • P3 domain
  • P3, the region C-G of the RNA subunit of E. coli RNase P
  • Ribonuclease P
  • Ribozyme
  • RNase P, ribonuclease P

ASJC Scopus subject areas

  • Biochemistry
  • Biophysics
  • Molecular Biology


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