PhyloString

PhyloString identifies and evaluates functional relationships among orthologous protein groups across diverse phylogenetic lineages using indices from the STRING database (Nucleic Acids Research, 8 Jan 2021;49(D1): D605-12).

Key Features:

• Functional Network Identification: Utilizes STRING indices to identify functional interaction networks involving proteins, RNA, DNA, lipids, and carbohydrates, encompassing enzymatic, structural, regulatory, and physical associations.
• Network Visualization: Provides visualization of interaction networks mapped across species to assess evolutionary conservation and divergence of functional pathways.
• Evaluation of Functional Modules: Decomposes identified networks into cohesive modules of proteins with similar STRING values that reflect functional similarity and phylogenetic origin.
• Phylogenetic Lineage Analysis: Focuses on orthologous protein groups from model organisms and other lineages to enable comparative analyses of evolutionary relationships and functional conservation.

Scientific Applications:

• Comparative Genomics: Compare protein interaction networks across species to infer the evolution of biological functions.
• Systems Biology: Support construction and analysis of systems-level models of cellular processes via comprehensive interaction networks.
• Functional Annotation: Assign putative functions to uncharacterized proteins based on their association with conserved functional modules.
• Drug Discovery and Development: Inform identification of potential drug targets and biomarkers by analyzing conserved and divergent protein interactions across species.

Methodology:

Integrates STRING database interaction indices, analyzes these interactions in the context of phylogenetic lineages of orthologous protein groups, and decomposes interaction networks into modules based on STRING values.