Examples: Entry P53_RAT - 'EWGKQSF' in Tetraodon - Search for "Blue-light photoreceptor" - "Drosophila melanogaster" species

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2,983

Full genomes

26,540,190

Proteins

1,497,951

OMA groups

1,088,197

Deepest HOGs

All.May2026

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  • 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.

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! 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)
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