Genes are researched by different organizations (Genomic, Clinical, Proteomic) concurrently. A single gene often gathers multiple aliases, symbols, and numeric tags over time as different biological functions are discovered.

Ensembl (EBI) focus on genomes, Entrez (NCBI) is the clinical/standard for literature, and UniProt tracks the resulting protein products. Each database maintains its own stable identifier system for cross-referencing.

We utilize high-speed batch reconciliation via the MyGene.info engine, which cross-indexes billions of curated entity relationships to find the most probable equivalent ID across all major repositories.