Identification of Splice Variants and Isoforms in Transcriptomics and Proteomics.

Area of Science:

• Molecular Biology
• Genomics
• Proteomics

Background:

• Alternative splicing regulates gene expression and protein diversity in eukaryotes.
• Short-read RNA sequencing (RNA-Seq) has been instrumental in studying alternative splicing.
• Emerging technologies offer enhanced capabilities for identifying splicing events and protein isoforms.

Purpose of the Study:

• To summarize advancements in short-read RNA-Seq for alternative splicing analysis.
• To review computational methods for proteoform identification in top-down proteomics.
• To highlight the potential of new technologies in alternative splicing and proteoform research.

Main Methods:

• Review of short-read RNA-Seq improvements, including percent splicing index estimation and differential analysis.
• Overview of computational approaches for proteoform identification and statistical analysis in top-down mass spectrometry.
• Discussion of emerging long-read RNA-Seq and top-down mass spectrometry techniques.

Main Results:

• Short-read RNA-Seq methods have been refined for more accurate alternative splicing analysis.
• Computational tools for top-down proteomics enable robust proteoform identification.
• New omics technologies promise reduced ambiguity in detecting alternative splicing and protein isoforms.

Conclusions:

• Continued technological development is essential for improving the effectiveness and coverage of alternative splicing event detection.
• Integration of short-read RNA-Seq, long-read RNA-Seq, and top-down proteomics will enhance understanding of proteome complexity.
• Future research should focus on maximizing the potential of emerging omics technologies for comprehensive alternative splicing and proteoform analysis.