FANTOM Web Resource update 2025

This page serves as a supplementary landing page for Nobusada et al., "Update of the FANTOM Web Resource: Enhancement for Studying Noncoding Genomes" (2025). Below are highlights of the latest updates:

  1. Functional annotation of lncRNAs in human iPS cells
  2. Chromatin interaction for nuclear lncRNA functional annotation
  3. Expansion of the transcribed CRE atlas – fanta.bio
  4. Collaborative integration with external databases

1. Functional annotation of lncRNAs in human iPS cells

To explore the potential functional roles of each lncRNA, we performed knockdown experiments on 390 lncRNAs and obtained their cellular phenotypes (e.g., growth rates) and molecular phenotypes (e.g., transcriptome profiles). We provide five interfaces for exploring these experimental and analytical results.

2. Chromatin interaction for nuclear lncRNA functional annotation

To explore potential lncRNA functions, we analyzed the genomic interaction of lncRNAs to other genes with Hi-C data. We provide six interfaces to browse the analysis results of lncRNAs and their target genes.

  • Comparison of lncRNA annotations among cell types
    This interface provides annotations for lncRNAs based on target genes whose promoters are spatially close to lncRNA genes based on chromatin interactions identified using Hi-C data. The annotations include lncRNA expression levels across various cell lines, GO term annotations for lncRNA target genes (presented as heatmaps), enriched TFBSs in target genes, and enriched GWAS traits in A/B compartments containing lncRNA target genes.
  • Comparison of lncRNA Enrichr annotations
    This interface displays enriched Enrichr gene sets within the target genes of a specified lncRNA.
  • LncRNA characterization report
    This interface enables browsing of target genes of individual lncRNA in a selected cell type identified using Hi-C chromatin interaction. By selecting a gene, users can view a list of reference lncRNAs that target the gene. Selecting a reference lncRNA will display all candidate target genes and their network with the lncRNA and associated annotations.
  • Annotated interactions per gene
    This interface provides a list and network visualization of genes connected via Hi-C interactions with specified genes. By selecting a gene, users can view a list of genes from different gene classes, including mRNA, lncRNA, and enhancers that interact with the selected genes.
  • Annotated differential Hi-C genomic interactions
    This interface shows differentially interacting annotated chromatin regions between two selected cell lines.
  • LncRNAs associated with GO and Enrichr annotation categories
    This interface allows users to search for lncRNAs associated with specific Gene Ontology terms or Enrichr gene sets.

3. Expansion of the transcribed CRE atlas – fanta.bio

In FANTOM5, we developed promoter and enhancer atlases in human and mouse using over 3,000 biological samples. To expand these atlases with new CAGE and CAGE-like profiles (e.g., NET-CAGE), we created a new database called fanta.bio.

4. Collaborative integration with external databases