GOExtender

GOExtender predicts novel Gene Ontology (GO) terms from biological network data to expand and connect them to the existing ontology, supporting automated GO maintenance and gene-function inference.

Key Features:

• Identification of Connected Gene Pairs: Systematically identifies gene pairs that are connected in biological networks and labeled by the same parent GO terms.
• Prediction of New GO Terms: Predicts new GO terms by leveraging biological network data and links these predicted terms to the current GO framework.
• Automatic Term Extension: Automatically proposes and integrates new ontology terms rather than only inferring relations between existing terms.
• Evaluation and Validation: Validates predictions by testing across GO releases and by supporting new terms with literature evidence, including assessments in biological process and cellular component categories.
• Research Applications: Discovers new GO terms with support from existing research to inform gene function and interaction analyses.

Scientific Applications:

• Automatic GO Maintenance: Supports automated expansion and maintenance of the Gene Ontology by proposing new, ontology-consistent terms.
• Gene Function and Interaction Discovery: Facilitates deeper understanding of gene functions and interactions through network-driven term prediction.

Methodology:

Uses biological network data to identify connected gene pairs labeled by the same parent GO terms, predicts novel GO terms and connects them to the current GO framework, and validates predictions by testing across GO releases with literature support.