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Related Experiment Videos

Antisense-induced ribosomal frameshifting.

Clark M Henderson1, Christine B Anderson, Michael T Howard

  • 1Department of Human Genetics, University of Utah, 15 N 2030 E, Room 7410, Salt Lake City, UT 84112-5330, USA.

Nucleic Acids Research
|August 22, 2006
PubMed
Summary
This summary is machine-generated.

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Antisense oligonucleotides can mimic RNA structures to induce programmed ribosomal frameshifting. This novel method efficiently shifts ribosomes into a new reading frame, offering a new tool for gene expression control.

Area of Science:

  • Molecular Biology
  • Genetics
  • Biochemistry

Background:

  • Programmed ribosomal frameshifting is a gene expression mechanism used by viruses and cellular genes.
  • It allows translation of two overlapping reading frames, producing distinct proteins.
  • RNA structures like pseudoknots often stimulate this frameshifting process.

Purpose of the Study:

  • To investigate if antisense oligonucleotides can induce programmed ribosomal frameshifting.
  • To demonstrate that antisense oligonucleotides can functionally mimic RNA structures in stimulating frameshifting.
  • To analyze the efficiency and influencing factors of antisense-induced frameshifting.

Main Methods:

  • Annealing antisense oligonucleotides downstream of a specific frameshift site (UCC UGA).

Related Experiment Videos

  • Assessing +1 ribosomal frameshifting efficiency in rabbit reticulocyte lysate translation systems.
  • Evaluating frameshifting efficiency in cultured mammalian cells.

    • Main Results:

    • Antisense oligonucleotides successfully mimicked RNA structures to induce +1 ribosomal frameshifting.
    • Antisense-induced frameshifting was highly efficient in both in vitro and in vivo systems.
    • Frameshifting efficiency was influenced by the sequence context upstream of the shift site and by polyamine concentrations.

    Conclusions:

    • Antisense oligonucleotides represent a novel tool to induce programmed ribosomal frameshifting.
    • This approach offers a new strategy for controlling gene expression via ribosomal frameshifting.
    • The efficiency of antisense-induced frameshifting is tunable by sequence context and polyamine levels.