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tRNA-like properties of tobacco rattle virus RNA. 1987

A van Belkum, and B Cornelissen, and H Linthorst, and J Bol, and C Pley, and L Bosch

The 3' terminal forty nucleotides of tobraviral RNAs readily fold into a tertiary structure, resembling that of tymo- and tobamoviral RNAs. The latter RNAs possess a tRNA-like structure at their 3' end that is recognized by a number of tRNA-specific enzymes (Rietveld et al. (1984), EMBO J. 3, 2613-2619). Characteristic for their aminoacyl acceptor arm is the presence of a so-called pseudoknot which we now also find in a corresponding position at the 3' terminus of TRV RNA2 (PSG strain). The nucleotide sequences of all tobraviral RNAs analysed so far indicate that they all possess a similar 3' terminal structure. A domain resembling the anticodon arm of canonical tRNA is not readily recognizable. TRV RNA2 can be adenylated with CTP, ATP; tRNA nucleotidyl transferase and ATP. It is unable, however, to accept any of the twenty common amino acids when incubated with ATP and aminoacyl-tRNA synthetases from wheat germ or yeast. We conclude that TRV RNA contains a tRNA-like structure, which, in contrast to the tymo- and tobamoviral tRNA-like structures, cannot be aminoacylated. It is unlikely therefore, that aminoacylation of plant viral RNAs with a tRNA-like structure is a prerequisite for viral RNA replication.

UI MeSH Term Description Entries
D009690 Nucleic Acid Conformation The spatial arrangement of the atoms of a nucleic acid or polynucleotide that results in its characteristic 3-dimensional shape. DNA Conformation,RNA Conformation,Conformation, DNA,Conformation, Nucleic Acid,Conformation, RNA,Conformations, DNA,Conformations, Nucleic Acid,Conformations, RNA,DNA Conformations,Nucleic Acid Conformations,RNA Conformations
D010942 Plant Viruses Viruses parasitic on plants. Phytophagineae,Plant Virus,Virus, Plant,Viruses, Plant
D010947 Plants, Toxic Plants or plant parts which are harmful to man or other animals. Plants, Poisonous,Plant, Poisonous,Plant, Toxic,Poisonous Plant,Poisonous Plants,Toxic Plant,Toxic Plants
D001483 Base Sequence The sequence of PURINES and PYRIMIDINES in nucleic acids and polynucleotides. It is also called nucleotide sequence. DNA Sequence,Nucleotide Sequence,RNA Sequence,DNA Sequences,Base Sequences,Nucleotide Sequences,RNA Sequences,Sequence, Base,Sequence, DNA,Sequence, Nucleotide,Sequence, RNA,Sequences, Base,Sequences, DNA,Sequences, Nucleotide,Sequences, RNA
D012343 RNA, Transfer The small RNA molecules, 73-80 nucleotides long, that function during translation (TRANSLATION, GENETIC) to align AMINO ACIDS at the RIBOSOMES in a sequence determined by the mRNA (RNA, MESSENGER). There are about 30 different transfer RNAs. Each recognizes a specific CODON set on the mRNA through its own ANTICODON and as aminoacyl tRNAs (RNA, TRANSFER, AMINO ACYL), each carries a specific amino acid to the ribosome to add to the elongating peptide chains. Suppressor Transfer RNA,Transfer RNA,tRNA,RNA, Transfer, Suppressor,Transfer RNA, Suppressor,RNA, Suppressor Transfer
D012346 RNA, Transfer, Amino Acyl Intermediates in protein biosynthesis. The compounds are formed from amino acids, ATP and transfer RNA, a reaction catalyzed by aminoacyl tRNA synthetase. They are key compounds in the genetic translation process. Amino Acyl tRNA,Transfer RNA, Amino Acyl,tRNA-Amino Acyl,Amino Acyl T RNA,Acyl tRNA, Amino,Acyl, tRNA-Amino,tRNA Amino Acyl,tRNA, Amino Acyl
D012367 RNA, Viral Ribonucleic acid that makes up the genetic material of viruses. Viral RNA
D014026 Nicotiana A plant genus of the family SOLANACEAE. Members contain NICOTINE and other biologically active chemicals; the dried leaves of Nicotiana tabacum are used for SMOKING. Tobacco Plant,Nicotiana tabacum,Plant, Tobacco,Plants, Tobacco,Tobacco Plants

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