Orthologous MAtrix
| Content | |
|---|---|
| Description | orthology inference among 1000 complete genomes. | 
| Contact | |
| Laboratory | ETH Zurich | 
| Authors | Christophe Dessimoz Adrian Schneider Adrian Altenhoff Gaston H. Gonnet | 
| Primary citation | Altenhoff et al. | 
| Release date | 2004 | 
| Access | |
| Website | omabrowser | 
| Download URL | http://omabrowser.org/All/download.html | 
| Web service URL | wsdl | 
| Miscellaneous | |
| Data release frequency | 2 releases per year | 
OMA (Orthologous MAtrix) is a database of orthologs extracted from available complete genomes. The orthology predictions of OMA are available in several forms:
- OMA Pairs: for a given gene, a list of predicted orthologs in other species is provided.
- OMA Groups: a set of genes across different species which are all orthologous.
- OMA Hierarchical Groups: the set of all genes that have evolved from a single ancestral gene in a given taxonomic range.
- OMA Genome Pair view: the list of all predicted orthologs between two species.