Orthologous MAtrix

OMA
Content
Descriptionorthology inference among 1000 complete genomes.
Contact
LaboratoryETH Zurich
AuthorsChristophe Dessimoz
Adrian Schneider
Adrian Altenhoff
Gaston H. Gonnet
Primary citationAltenhoff et al.
Release date2004
Access
Websiteomabrowser.org
Download URLhttp://omabrowser.org/All/download.html
Web service URLwsdl
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.