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Related Experiment Videos

Complementarity between ferritin H mRNA and 28 S ribosomal RNA.

S K Jain, J Crampton, I L Gonzalez

    Biochemical and Biophysical Research Communications
    |September 16, 1985
    PubMed
    Summary

    Human ferritin H mRNA and 28 S ribosomal RNA exhibit sequence complementarity, potentially regulating mRNA stability and translation. This interaction involves specific RNA regions and repeats, offering insights into gene expression control.

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    Area of Science:

    • Molecular Biology
    • Genetics
    • Biochemistry

    Background:

    • Ferritin H mRNA plays a crucial role in iron storage.
    • Ribosomal RNA (28 S RNA) is essential for protein synthesis.
    • Post-transcriptional regulation mechanisms are vital for gene expression control.

    Purpose of the Study:

    • To investigate sequence complementarity between human ferritin H mRNA and 28 S ribosomal RNA.
    • To explore the potential functional implications of this RNA-RNA interaction.

    Main Methods:

    • Sequence analysis to identify complementary regions between ferritin H mRNA and 28 S RNA.
    • Bioinformatic tools to predict base-pairing interactions.

    Main Results:

    • Identified a 67-nucleotide region upstream of the initiating AUG in ferritin H mRNA complementary to 28 S RNA.

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  • Discovered extensive base-pairing (55 pairs) involving CCG repeats in mRNA and GGC repeats in rRNA.
  • These complementary regions in 28 S RNA appear to be evolutionary expansion sequences.

    • Conclusions:

    • The sequence complementarity suggests a direct interaction between ferritin H mRNA and 28 S RNA.
    • This interaction may serve as a regulatory mechanism for ferritin H mRNA stability and/or translatability.
    • The findings provide novel insights into the regulation of ferritin expression at the post-transcriptional level.