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Translation

Translation

Lesson: Translation
Translation is the process of synthesizing proteins from the genetic information carried by messenger RNA (mRNA). Following transcription, it constitutes the final step in the expression of genes. This process is carried out by ribosomes, complexes of protein and specialized RNA molecules. Ribosomes, transfer RNA (tRNA), and other proteins produce a chain of amino acids—the polypeptide—as the end product of translation.
Translation Produces the Building Blocks of Life

Translation

Translation

Lesson: Translation
Translation is the process of synthesizing proteins from the genetic information carried by messenger RNA (mRNA). Following transcription, it constitutes the final step in the expression of genes. This process is carried out by ribosomes, complexes of protein and specialized RNA molecules. Ribosomes, transfer RNA (tRNA), and other proteins produce a chain of amino acids—the polypeptide—as the end product of translation.
Translation Produces the Building Blocks of Life

Leaky Scanning

Leaky Scanning

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 stands for...

Improving Translational Accuracy

Improving Translational Accuracy

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...

Improving Translational Accuracy

Improving Translational Accuracy

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...

Microorganisms in Medicine and Therapeutics

Microorganisms in Medicine and Therapeutics

Microorganisms play a fundamental role in vaccine development, gene therapy, and therapeutic production. Their biological properties are harnessed to advance medicine and public health. Beyond immunization, microorganisms contribute to gut health, antibiotic synthesis, and genetic disease treatment.Live Attenuated and Inactivated VaccinesLive attenuated vaccines, such as the measles, mumps, and rubella (MMR) vaccine, utilize weakened forms of pathogens to closely resemble natural infections.

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Related Experiment Video

Updated: Jun 16, 2026

Quantitative Immunofluorescence to Measure Global Localized Translation

Quantitative Immunofluorescence to Measure Global Localized Translation

Published on: August 22, 2017

Translational medicine--doing it backwards.

Robert B Nussenblatt¹, Francesco M Marincola, Alan N Schechter

¹Laboratory of Immunology, National Eye Institute, National Institutes of Health, Bethesda, MD 20892, USA. DrBob@nei.nih.gov

Journal of Translational Medicine

|February 6, 2010

Summary

This summary is machine-generated.

Translational medicine requires scientists to adopt new discovery approaches. Current systems favor non-human models, hindering clinically relevant hypotheses and human pathophysiology research.

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Area of Science:

Biomedical Research
Translational Medicine

Background:

The current scientific paradigm struggles to translate basic research into clinical applications.
The dominant funding system prioritizes model systems over human-based research, impacting hypothesis generation.

Purpose of the Study:

To evaluate scientist readiness for translational medicine.
To critique the current hypothesis-driven research model in biomedical science.
To propose fundamental changes for effective translational medicine.

Main Methods:

Conceptual analysis of current research paradigms.
Critique of the biomedical funding system.
Discussion of the limitations in clinical study designs.

Main Results:

The hypothesis-driven model is ill-suited for translational medicine without clinically relevant hypotheses.
The funding system encourages research detached from human disease relevance.
This leads to insufficient rigor in hypothesis selection and limited scope in clinical studies.

Conclusions:

The current approach to translational medicine is illogical.
A fundamental shift in scientific approach and funding is necessary.
Prioritizing human pathophysiology and clinically relevant hypotheses is crucial for impactful translational medicine.