Identification of Small Novel Coding Sequences, a Proteogenomics Endeavor.

Area of Science:

• Proteomics
• Genomics
• Molecular Biology

Background:

• Small proteins and peptides are difficult to identify.
• Technological advancements and multi-omics approaches are crucial for discovering novel small coding sequences.
• Next-generation sequencing (NGS) technologies provide accurate transcriptome and translatome information, enhancing proteomics research.

Purpose of the Study:

• To highlight the role of RNA-Seq and RIBO-Seq (ribosome profiling) in identifying small translation products.
• To focus on the discovery of micropeptides and neo-antigens.
• To emphasize the integration of multi-omics data for advancing small protein identification.

Main Methods:

• Utilizing RNA-Seq for transcriptome and sample-specific genomic variation analysis.
• Employing RIBO-Seq (ribosome profiling) to sequence ribosome-protected fragments and identify translation events in small open reading frames.
• Integrating multi-omics data, including transcriptomic and proteomic information.

Main Results:

• RNA-Seq facilitates the identification of neo-antigens by capturing genomic variations.
• RIBO-Seq enables the discovery of micropeptides by detecting translation in previously non-coding regions.
• The study underscores the potential for novel biological insights through the identification of these small translation products.

Conclusions:

• The integration of RNA-Seq and RIBO-Seq is essential for comprehensive small protein identification.
• Discovering micropeptides and neo-antigens significantly expands our understanding of biological processes.
• Proteogenomics is a key strategy for advancing research in the identification of small translation products.