O-GlcNAc resources
Curated protein and site evidence, sequence prediction, and glycoproteomics analysis.
Search O-GlcNAcAtlas
Find experimentally identified proteins and modification sites.
O-GlcNAcAtlas 5.0 · Release statistics and counting rules
Tools and databases
Choose a resource for your input and research question.
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O-GlcNAcAtlas
Curated O-GlcNAc sites and proteins
- Input
- Accession, gene, protein, peptide, or species
- Result
- Reported sites with experimental context and publications
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OGT-PIN
Curated OGT interaction evidence
- Input
- Interactor identifier, gene name, or species
- Result
- Reported OGT interactions and their experimental sources
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O-GlcNAcPRED-DL
Sequence-based site prediction
- Input
- Human or mouse protein sequences in FASTA format
- Result
- Candidate sites, published model scores, and confidence levels
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HexNAcQuest
HexNAc isomer classification
- Input
- CSV with five diagnostic oxonium-ion intensities
- Result
- GlcNAc or GalNAc classification and spectrum inspection
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O-GlcNAc Workbench
Prediction alongside curated evidence
- Input
- Human or mouse FASTA; UniProt accessions enable evidence matching
- Result
- Site predictions, Atlas matches, and OGT-PIN evidence in one view
O-GlcNAc biology
O-linked β-N-acetylglucosamine is a dynamic post-translational modification on serine, threonine, and tyrosine residues. It is regulated by OGT and OGA and has been implicated in transcription, translation, cell-cycle control, metabolism, and signaling.
Predictions support experimental prioritization; they are not experimental evidence. Each resource retains its own evidence and interpretation criteria.
Data, methods, and reuse
Use the source publications and model documentation when interpreting results. Please cite each resource used in your work.