Enrichment Map Cytoscape Plugin

Enrichment Map Cytoscape Plugin visualizes gene-set enrichment results as a network in which nodes represent gene-sets (e.g., pathways or Gene Ontology terms) and edges represent gene overlap to aid interpretation of gene-set enrichment analysis from experiments such as gene expression studies.

Key Features:

• Network-Based Visualization: Represents each gene-set as a node and encodes the degree of gene overlap between sets as edges to show functional relationships.
• Clustering and Layout Automation: Applies an automated layout algorithm that groups related gene-sets into clusters based on their overlaps to highlight coherent functional themes and reduce redundancy.
• Comparison of Enrichment Results: Supports visualization of multiple enrichment results within a single network to enable direct comparison across experiments or conditions.

Scientific Applications:

• Functional characterization of large gene lists: Aids identification of statistically over-represented gene-sets that are functionally coherent from high-throughput gene expression experiments.
• Comparative enrichment analysis: Facilitates comparison of enrichment results across different experiments or conditions to detect shared or distinct functional signatures.

Methodology:

Constructs a network where nodes represent individual gene-sets and edges denote gene overlap, and applies an automated layout algorithm that clusters related gene-sets based on overlap to reduce redundancy and highlight functional themes.