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Related Experiment Videos

rRNA-like sequences in human mRNAs.

Flavio Mignone1, Graziano Pesole

  • 1Dipartimento di Fisiologia e Biochimica Generali, Università di Milano, Milan, Italy.

Applied Bioinformatics
|May 8, 2004
PubMed
Summary
This summary is machine-generated.

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Many human mRNA sequences containing long ribosomal RNA (rRNA)-like regions are likely artifacts. However, specific short rRNA sequences suggest a role in post-transcriptional gene regulation.

Area of Science:

  • Molecular Biology
  • Genomics
  • Bioinformatics

Background:

  • Eukaryotic transcripts often contain sequences similar or complementary to ribosomal RNAs (rRNAs).
  • Previous studies suggested these rRNA-like sequences may regulate translation.

Purpose of the Study:

  • To analyze the occurrence and abundance of rRNA-like sequences in human transcripts.
  • To investigate the potential functional roles of these sequences in gene expression.

Main Methods:

  • Computational analysis of human genome and EST sequences.
  • Examination of the occurrence of 9-nt sequences corresponding to human 18S rRNA (direct and complementary).

Main Results:

  • Long, highly similar rRNA-like sequences in mRNA are likely artifacts.

Related Experiment Videos

  • Specific 9-nt sequences related to 18S rRNA are significantly over- or underrepresented in human transcripts.

    • Conclusions:

    • The presence of certain short rRNA-like sequences suggests a role beyond mere artifacts.
    • These findings point towards a potential involvement in post-transcriptional gene expression regulation.