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Related Concept Videos

Translation01:31

Translation

22.2K
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
Proteins are...
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Translation01:31

Translation

160.7K
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...
160.7K
Alternative RNA Splicing02:18

Alternative RNA Splicing

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Alternative RNA splicing is the regulated splicing of exons and introns to produce different mature mRNAs from a single pre-mRNA. Unlike in constitutive splicing where a single gene produces a single type of mRNA, alternative splicing allows an organism to produce multiple proteins from a single gene and plays an important role in protein diversity.
There are five types of alternative RNA splicing that vary in the ways the pre-mRNA segments are removed or retained in the mature mRNA. The first...
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General Transcription Factors01:30

General Transcription Factors

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Tissue-specific transcription factors contribute to diverse cellular functions in mammals. For example, the gene for beta globin, a major component of hemoglobin, is present in all cells of the body. However, it is only expressed in red blood cells because the transcription factors that can bind to the promoter sequences of the beta globin gene are only expressed in these cells. Tissue-specific transcription factors also ensure that mutations in these factors may impair only the function of...
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Proteins: From Genes to Degradation02:11

Proteins: From Genes to Degradation

14.9K
Within a biological system, the DNA encodes the RNA, and the nucleotide sequence in the RNA further defines the amino acid sequence in the protein. This is referred to as “The Central Dogma of Molecular Biology” - a term coined by Francis Crick.  Central dogma is a firm principle in biology that defines the flow of genetic information within any life form. The two fundamental steps in central dogma are - transcription and translation.
Transcription is the synthesis of RNA...
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Nuclear Export of mRNA02:31

Nuclear Export of mRNA

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Before mRNAs are exported to the cytoplasm, it is crucial to check each mRNA for structural and functional integrity. Eukaryotic cells use several different mechanisms, collectively known as mRNA surveillance, to look for irregularities in mRNAs. Irregular or aberrant mRNA are rapidly degraded by various enzymes. If a defective mRNA escapes the surveillance, it would be translated into a protein which would either be non-functional or not function properly. One of the primary irregularities in...
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Related Experiment Video

Updated: Apr 1, 2026

Polysome Profiling in Leishmania, Human Cells and Mouse Testis
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Polysome Profiling in Leishmania, Human Cells and Mouse Testis

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Ribosomopathies: Global process, tissue specific defects.

Pamela C Yelick1, Paul A Trainor2

  • 1Tufts University ; Boston, MA USA.

Rare Diseases (Austin, Tex.)
|October 7, 2015
PubMed
Summary
This summary is machine-generated.

Ribosomal protein gene mutations, unexpectedly, cause specific tissue defects rather than global issues. This highlights ribosomes' crucial, context-dependent roles in development and disease, opening avenues for treating ribosomopathies.

Keywords:
anaemiaribosome biogenesisribosomopathyskeletal defects

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Area of Science:

  • Molecular Biology
  • Developmental Biology
  • Genetics

Background:

  • Ribosomal biogenesis is essential for cell function.
  • Mutations in ribosomal protein genes are linked to human diseases (ribosomopathies).
  • Ribosomal protein genes are globally expressed but can cause tissue-specific defects.

Purpose of the Study:

  • To review current knowledge on ribosomal protein mutations in human disease.
  • To explore molecular mechanisms underlying tissue-specific defects.
  • To discuss future research directions and therapeutic strategies for ribosomopathies.

Main Methods:

  • Literature review of human diseases caused by ribosomal protein mutations.
  • Analysis of model systems for studying ribosomopathies.
  • Comparative analysis of different ribosomal protein mutations' effects.

Main Results:

  • Ribosomal protein mutations can lead to distinct tissue-specific phenotypes, challenging the notion of purely global effects.
  • The study of these mutations reveals dynamic regulation of protein translation.
  • Similarities and differences in disease mechanisms among various ribosomal protein mutations were identified.

Conclusions:

  • Ribosomes play critical roles in cell type-specific functions during development.
  • Understanding these roles is key to developing treatments for ribosomopathies.
  • Further research is needed to elucidate ribosome biogenesis and its impact on health and disease.