Meta tags:
description=OMA is a method and database for the inference of orthologs among complete genomes. We provide browsable orthology predictions, APIs, flat file downloads and a standalone version of the inference algorithm.;
keywords=orthology,evolutionary gene relations,evolution,paralogy,inference;

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Text of the page (random words):
oma orthology database explore species release information phylostratigraphy quick access to extant and ancestral genomes oma groups hierarchical orthologous groups hogs functional annotations local synteny tools online tools fast mapping functional prediction synteny dotplot genome pair orthology go enrichment analysis oma mo find model organism omark assess proteome quality software oma standalone read2tree fastoma pyham visualisation tools phylo io iham see all oma tools download oma database files current release archives datasets for client side analyses export all all export proteomes for fastoma export marker genes api oma api reference oma api explorer r client library python client library semantic web sparql endpoint access the oma data help introduction orthology basics type of homologs access the oma data catalog of tools suggesting a genome faq q a on biostars glossary oma academy about oma team sab funding terms of use contact how to use the search in oma browser how does the search work input a query in the search field everytime you press space or enter after a word a token will be created the token is composed of a prefix describing how the query should be treated and the actual query itself what are the different types of tokens each token represents either a gene hog oma group or taxon prefixes are used to specify which category to associate with the query term category prefixes genes id go ec description domain sequence hogs hog sequence oma groups omagroup fingerprint sequence taxon species taxid taxon for example the token go 4225 will search for genes in the oma database annotated with the go 0004225 gene ontology term how to search for a multi word query if your query term is composed of multiple words e g homo sapiens use to encapsulate it how many tokens can i have there is no limit on the number of tokens it is not possible to enter multiple tokens of different categories except taxon which can be combined with other categories for example you can search for hog 60627 species human to return human genes found in hog 606207 how to edit delete a token to edit a query click on it to modify the input field to edit a prefix click on the dropdown icon to select another one to remove a token click on the x to delete it autosuggest typing a query without hitting enter or space will prompt an autosuggestion for the identifier after a few seconds close help prefix format_token_string token query x this error_message examples entry p53_rat ewgkqsf in tetraodon search for blue light photoreceptor drosophila melanogaster species scroll to discover more chevrondown 2 983 full genomes 26 540 190 proteins 1 497 951 oma groups 1 088 197 deepest hogs all may2026 release first time here keyboard_arrow_right introduction to oma see oma in a nutshell introduction in oma doc familiarise yourself with orthology basics swiss orthology orthology benchmark familiarise yourself with the different types of homologs in the oma doc get ideas about different types of analyses you could do with oma start to read about oma oma tools keyboard_arrow_right corona oma browser online tool oma standalone software pyham python library functional prediction online tool synteny dotplot online tool combined orthology prediction from oma orthodb resource discover more tools download options keyboard_arrow_right current release all data is available for download in a variety of formats api the oma browser now uses swagger ui as api explorer export all all export a set of genomes and their precomputed all against all comparisons for oma standalone see more download options latest news keyboard_arrow_right may 2026 release is out oma now covers 2983 species check which genomes are new and updated stay in touch follow email sign up max 1 2 emails month no spam if you use oma in your work please consider citing altenhoff a et al oma orthology in 2024 improved prokaryote coverage ancestral and extant go enrichment a revamped synteny viewer and more in the oma ecosystem nucleic acids research 2024 52 d1 d513 d521 doi 10 1093 nar gkad1020 oma is part of elixir core data resource swiss orthology initiative sib open database portfolio