Tags: Biological Database, Database.
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.
