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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.
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Related Experiment Video

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Using the E1A Minigene Tool to Study mRNA Splicing Changes
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TSVdb: a web-tool for TCGA splicing variants analysis.

Wenjie Sun1, Ting Duan2, Panmeng Ye3

  • 1Department of Pathology, Key Laboratory of Disease Proteomics of Zhejiang Province, School of Medicine, Zhejiang University, Hangzhou, 310058, China.

BMC Genomics
|May 31, 2018
PubMed
Summary

TSVdb is a new web tool for exploring alternative splicing in The Cancer Genome Atlas (TCGA) data. It helps researchers link splicing variations to clinical data and patient outcomes in 33 cancer types.

Keywords:
Alternative splicingCancerSplicing variantTCGAVisualization tools

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Area of Science:

  • Genomics
  • Bioinformatics
  • Cancer Research

Background:

  • The Cancer Genome Atlas (TCGA) provides extensive -omics and clinical data for cancer research.
  • Alternative splicing plays a critical role in cancer development and progression.
  • Discovering tumor-specific isoforms and their functions is crucial for understanding tumorigenesis.

Purpose of the Study:

  • To develop a web-based tool for exploring alternative splicing in TCGA samples.
  • To facilitate the analysis of isoform expression and its relationship with clinical variables and patient prognosis.

Main Methods:

  • Development of TSVdb, a web-based bioinformatics tool.
  • Integration of TCGA data, including -omics and 33 clinical variables.
  • Implementation of visualization tools for gene expression, exon/junction usage, and splicing patterns.

Main Results:

  • TSVdb enables exploration of alternative splicing across 33 tumor types using TCGA data.
  • The tool visualizes clinical data, gene expression, and splicing patterns.
  • Researchers can analyze isoform expression variations and their correlation with patient prognosis.

Conclusions:

  • TSVdb provides a platform for investigating isoform-level alterations in cancer.
  • The tool is expected to advance cancer research by facilitating the study of alternative splicing.