CVm6A: A Visualization and Exploration Database for m⁶As in Cell Lines

Area of Science:

• * Molecular Biology
• * Genomics
• * Bioinformatics

Background:

• * N6-methyladenosine (m⁶A) is a crucial epitranscriptomic modification involved in various cellular processes.
• * Existing research lacks a comprehensive visualization tool for global m⁶A patterns across different cell types.
• * Understanding cell-specific m⁶A regulation is vital for deciphering its role in biological functions.

Purpose of the Study:

• * To establish a visualized database, CVm6A, for exploring cell-dependent m⁶A modification patterns.
• * To integrate and analyze publicly available MeRIP-Seq and m⁶A-CLIP-Seq datasets.
• * To facilitate research on the functional and regulatory roles of m⁶A in cellular contexts.

Main Methods:

• * Aggregation of MeRIP-Seq and m⁶A-CLIP-Seq data from public repositories.
• * Identification and classification of m⁶A peaks in human and mouse cell lines.
• * Mapping of m⁶A modifications to subcellular components and gene regions.
• * Integration of findings into the CVm6A database.

Main Results:

• * Identified 340,950 m⁶A peaks in 23 human cell lines and 179,201 peaks in eight mouse cell lines.
• * Classified m⁶A peaks across mRNA and lncRNA, and mapped them to cellular locations and gene regions.
• * Differentiated m⁶A modifications in cancer (190,050 peaks) versus non-cancer (150,900 peaks) human cells.

Conclusions:

• * The CVm6A database provides a unique resource for visualizing cell-specific m⁶A patterns.
• * This resource can significantly advance the understanding of m⁶A's function and regulation in development and disease.
• * CVm6A supports research into the intricate roles of m⁶A modifications in diverse cellular environments.