Modulation of group I ribozyme activity by cationic porphyrins

Shigeyoshi Matsumura, Tatsunobu Ito, Takahiro Tanaka, Hiroyuki Furuta, Yoshiya Ikawa

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The effects of cationic porphyrins on the catalytic activities of four group I ribozymes were investigated. A cationic porphyrin possessing four pyridinium moieties (pPyP) inhibited two group IC3 ribozymes (Syn Rz and Azo Rz) and a group IC1 ribozyme (Tet Rz). In the case of a group IA2 ribozyme (Td Rz), however, pPyP served not only as an inhibitor but also as an activator, and the effects of pPyP were dependent on its concentration. To analyze the structural and electronic factors determining the effects of pPyP on group I ribozymes, three cationic porphyrins (pPyNCP, pPyF4P, and TMPyP) were also examined. As interactions between small organic molecules and nucleic acids are attractive and important issues in biochemistry and biotechnology, this study contributes to the development of porphyrin-based molecules that can modulate functions of structured RNA molecules.

Original languageEnglish
Pages (from-to)251-263
Number of pages13
JournalBiology
Volume4
Issue number2
DOIs
Publication statusPublished - Mar 24 2015

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porphyrins
Porphyrins
Catalytic RNA
Modulation
Molecules
Biochemistry
Biotechnology
catalytic activity
biochemistry
biotechnology
Nucleic Acids
nucleic acids
electronics
Catalyst activity
RNA
GIR1 ribozyme

All Science Journal Classification (ASJC) codes

  • Biochemistry, Genetics and Molecular Biology(all)
  • Immunology and Microbiology(all)
  • Agricultural and Biological Sciences(all)

Cite this

Modulation of group I ribozyme activity by cationic porphyrins. / Matsumura, Shigeyoshi; Ito, Tatsunobu; Tanaka, Takahiro; Furuta, Hiroyuki; Ikawa, Yoshiya.

In: Biology, Vol. 4, No. 2, 24.03.2015, p. 251-263.

Research output: Contribution to journalArticle

Matsumura, S, Ito, T, Tanaka, T, Furuta, H & Ikawa, Y 2015, 'Modulation of group I ribozyme activity by cationic porphyrins', Biology, vol. 4, no. 2, pp. 251-263. https://doi.org/10.3390/biology4020251
Matsumura, Shigeyoshi ; Ito, Tatsunobu ; Tanaka, Takahiro ; Furuta, Hiroyuki ; Ikawa, Yoshiya. / Modulation of group I ribozyme activity by cationic porphyrins. In: Biology. 2015 ; Vol. 4, No. 2. pp. 251-263.
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