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Related Concept Videos

Ribosome Profiling02:24

Ribosome Profiling

4.0K
Ribosome profiling or ribo-sequencing is a deep sequencing technique that produces a snapshot of active translation in a cell. It selectively sequences the mRNAs protected by ribosomes to get an insight into a cell’s translation landscape at any given point in time.
Applications of ribosome profiling
Ribosome profiling has many applications, including in vivo monitoring of translation inside a particular organ or tissue type and quantifying new protein synthesis levels.
The technique...
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Leaky Scanning02:28

Leaky Scanning

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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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Related Experiment Video

Updated: Dec 31, 2025

Visualizing Genetic Variants, Short Targets, and Point Mutations in the Morphological Tissue Context with an RNA In Situ Hybridization Assay
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Visualizing Genetic Variants, Short Targets, and Point Mutations in the Morphological Tissue Context with an RNA In Situ Hybridization Assay

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Exploring the RNA Gap for Improving Diagnostic Yield in Primary Immunodeficiencies.

Jed J Lye1, Anthony Williams1,2, Diana Baralle1,3

  • 1University of Southampton Medical School, University of Southampton, Southampton, United Kingdom.

Frontiers in Genetics
|January 11, 2020
PubMed
Summary

RNA analysis offers new insights into diagnosing primary immunodeficiency, improving upon current genetic sequencing limitations. This approach enhances variant identification, especially for splicing defects, to boost diagnostic success rates.

Keywords:
RNARNASeqRNAseq analysisclinical diagnosticsprimary immunodeficiency disorders

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Area of Science:

  • Immunology
  • Genetics
  • Bioinformatics

Background:

  • Diagnosing primary immunodeficiency (PID) is challenging, with whole-exome/genome sequencing achieving 25-60% diagnostic rates.
  • Current genetic sequencing methods have limitations in identifying all causative variants for PID.

Purpose of the Study:

  • To assess the challenges in PID diagnosis.
  • To explore the utility of RNA-focused analysis in improving diagnostic yield for PID.
  • To highlight the role of RNA biology in immune regulation and function.

Main Methods:

  • Review of RNA biology investigations, including differential expression, monoallelic expression, and alternative splicing.
  • Assessment of how RNA data can inform bioinformatic pipelines and variant filtering.
  • Discussion of technological and biological challenges in RNA-based diagnostics.

Main Results:

  • RNA analysis provides insights into differential expression, monoallelic expression, and alternative splicing crucial for immune function.
  • Integrating RNA data enhances bioinformatic analysis and variant filtering, particularly for splicing-affecting variants.
  • Improved diagnostic ability for primary immunodeficiency is achievable through RNA-focused approaches.

Conclusions:

  • RNA-focused analysis significantly expands and improves the ability to diagnose primary immunodeficiency.
  • Further development is needed to address technological and biological challenges for broader clinical application.
  • RNA biology offers unparalleled insight into cellular immunology for enhanced diagnostics.