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Related Concept Videos

Translational Regulation01:29

Translational Regulation

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Translational regulation in prokaryotes ensures efficient protein synthesis by controlling ribosome access to mRNA. This regulation is mediated by secondary RNA structures, including translational riboswitches, RNA thermometers, and small RNAs (sRNAs), which respond to intracellular and environmental signals to modulate gene expression.Translational RiboswitchesRiboswitches in the leader region of mRNAs can regulate translation by altering the accessibility of the Shine-Dalgarno (SD) sequence,...
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Base complementarity between the three base pairs of mRNA codon and the tRNA anticodon is not a failsafe mechanism. Inaccuracies can range from a single mismatch to no correct base pairing at all. The free energy difference between the correct and nearly correct base pairs can be as small as 3 kcal/ mol. With complementarity being the only proofreading step, the estimated error frequency would be one wrong amino acid in every 100 amino acids incorporated. However, error frequencies observed in...
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Initiation of Translation02:33

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Initiating translation is complex because it involves multiple molecules. Initiator tRNA, ribosomal subunits, and eukaryotic initiation factors (eIFs) are all required to assemble on the initiation codon of mRNA. This process consists of several steps that are mediated by different eIFs.
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During most eukaryotic translation processes, the small 40S ribosome subunit scans an mRNA from its 5' end until it encounters the first start AUG codon. The large 60S ribosomal subunit then joins the smaller one to initiate protein synthesis. The location of the translation initiation is largely determined by the nucleotides near the start codon as there may be multiple translation initiation sites present on the mRNA.  Marilyn Kozak discovered that the sequence RCCAUGG (where R...
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Key elements for nourishing the translational research environment.

Hans-Dieter Volk1, Molly M Stevens2, David J Mooney3

  • 1Berlin-Brandenburg Center for Regenerative Therapies (BCRT), Charité-Universitätsmedizin Berlin, Germany. Institute for Medical Immunology, Charité-Universitätsmedizin Berlin, Germany. hans-dieter.volk@charite.de.

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Summary

Academic translation needs a robust support system, including people, goals, models, partnerships, and infrastructure, to advance basic science and technology into clinical applications.

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Area of Science:

  • Biomedical research
  • Translational science

Background:

  • Academic environments generate promising basic science and technology.
  • Clinical translation of these discoveries is often challenging.

Purpose of the Study:

  • To highlight the essential components of a support system for academic translation.
  • To emphasize the need for a comprehensive approach to move research into practice.

Main Methods:

  • Conceptual analysis of translational science requirements.
  • Identification of key elements facilitating clinical application.

Main Results:

  • A multi-faceted support system is crucial for successful academic translation.
  • Key components include personnel, strategic goals, established models, collaborations, and infrastructure.

Conclusions:

  • Effective academic translation relies on a well-developed support ecosystem.
  • Investing in these support structures is vital for advancing healthcare solutions.