Table 1.
Discovery data sources and their update frequency
| Data source | Update frequency (days)* | Present in |
| CGAP (SAGE) [38] | 60 | DiscoveryDB/DiscoverySpace |
| COG [51] | 60 | DiscoveryDB/DiscoverySpace |
| Ensembl (human and mouse) [45] | 30 | DiscoveryDB/DiscoverySpace |
| EntrezGene [13] | 14 | DiscoveryDB/DiscoverySpace |
| Gene Expression Omnibus (SAGE) [37] | 60 | DiscoveryDB/DiscoverySpace |
| Gene Ontology [11] | 30 | DiscoveryDB/DiscoverySpace |
| Homologene [52] | 30 | DiscoveryDB/DiscoverySpace |
| Inparanoid [53] | 30 | DiscoveryDB/DiscoverySpace |
| KEGG [54] | 60 | DiscoveryDB/DiscoverySpace |
| LocusLink [55] | 21 | DiscoveryDB/DiscoverySpace |
| MGC [44] | 14 | DiscoveryDB/DiscoverySpace |
| PAGOSUB [56] | 60 | DiscoveryDB/DiscoverySpace |
| PFAM [57] | 30 | DiscoveryDB/DiscoverySpace |
| PSORT [36] | 120 | DiscoveryDB/DiscoverySpace |
| RefSeq [12] | 14 | DiscoveryDB/DiscoverySpace |
| SwissProt [58] | 90 | DiscoveryDB/DiscoverySpace |
| Taxonomy (NCBI) [52] | 90 | DiscoveryDB/DiscoverySpace |
| TCAG [59] | 30 | DiscoveryDB/DiscoverySpace |
| Transcompel* [60] | - | DiscoveryDB/DiscoverySpace |
| Transpro* [61] | - | DiscoveryDB/DiscoverySpace |
| Hugo [62] | 120 | DiscoveryDB only |
| Omim [63] | 60 | DiscoveryDB only |
| Genecards [64] | When released | DiscoveryDB only |
| Trembl [58] | 90 | DiscoveryDB only |
| Interpro [65] | 120 | DiscoveryDB only |
| SCOP [66] | 120 | DiscoveryDB only |
Many data sources are not released publicly to coincide with a consistent release cycle and, as such, an automated pipeline has been created to regularly monitor the release of new data. Data sources present in DiscoveryDB have been integrated and can be accessed via SQL commands. Data sources present in DiscoverySpace can, in addition, be accessed through the DiscoverySpace graphical user interface. *Licensed data sources (not externally available).