GoFish

GoFish identifies and ranks gene products by querying combinations of Gene Ontology (GO) attributes across four model organisms: Saccharomyces cerevisiae, Caenorhabditis elegans, Drosophila melanogaster, and Mus musculus.

Key Features:

• Java implementation: Implemented in Java.
• Boolean query support: Accepts Boolean queries composed of GO attributes to identify gene products with specified attributes or combinations.
• Ranking mechanism: Ranks gene products by how well they satisfy the Boolean query, producing a prioritized list.
• Cross-species support: Operates on gene product data for Saccharomyces cerevisiae, Caenorhabditis elegans, Drosophila melanogaster, and Mus musculus.

Scientific Applications:

• Functional Genomics: Hypothesizing functions of uncharacterized genes by identifying genes with matching GO annotations.
• Pathway Analysis: Exploring potential involvement of gene products in biological pathways by filtering specific combinations of GO terms.
• Comparative Studies: Comparing GO attribute patterns across the four model organisms to assess evolutionary conservation or divergence of gene function.

Methodology:

Users input a Boolean query composed of GO attributes; GoFish evaluates gene products in its supported databases by assessing the presence and combination of GO terms and ranks products according to how well they match the query, providing a probabilistic measure of relevance.