Novel reactions of RNAase P with a tRNA-like structure in turnip yellow mosaic virus RNA

Cecilia Guerrier-Takada, Alex van Belkum, Cornelis W A Pleii, Sidney Altman

Research output: Contribution to journalArticle

76 Citations (Scopus)

Abstract

A quasi-continuous double hellix, containing a pseudoknot and ending in a single-stranded region which contains CCA, can be formed at the 3′ terminus of the genomic RNAs of certain plant viruses. M1 RNA (the catalytic subunit) alone and the RNAase P holoenzyme from E. coli cleave the tRNA-like structure of TYMV RNA in vitro at the 5′ side of the quasi-helical structure to generate 5′ phosphate and 3′ hydroxyl groups in the cleavage products. The intact pseudoknot structure in the substrate is not required for the reaction catalyzed by M1 RNA alone, but its presence markedly improves the efficiency of the reaction. In addition to its essential role in the biosynthesis of tRNA, RNAase P may have another function in vivo, namely, in the physiology of viral infections.

Original languageEnglish (US)
Pages (from-to)267-272
Number of pages6
JournalCell
Volume53
Issue number2
DOIs
StatePublished - Apr 22 1988
Externally publishedYes

Fingerprint

Tymovirus
Transfer RNA
Viruses
RNA
Catalytic RNA
Holoenzymes
Biosynthesis
Physiology
Plant Viruses
Hydroxyl Radical
Escherichia coli
Virus Diseases
Phosphates
Catalytic Domain
Substrates

ASJC Scopus subject areas

  • Cell Biology
  • Molecular Biology

Cite this

Novel reactions of RNAase P with a tRNA-like structure in turnip yellow mosaic virus RNA. / Guerrier-Takada, Cecilia; van Belkum, Alex; Pleii, Cornelis W A; Altman, Sidney.

In: Cell, Vol. 53, No. 2, 22.04.1988, p. 267-272.

Research output: Contribution to journalArticle

Guerrier-Takada, Cecilia ; van Belkum, Alex ; Pleii, Cornelis W A ; Altman, Sidney. / Novel reactions of RNAase P with a tRNA-like structure in turnip yellow mosaic virus RNA. In: Cell. 1988 ; Vol. 53, No. 2. pp. 267-272.
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