SDAP provides several ways to find allergen information. The quickest entry point is the text search (Search SDAP) or the alphabetical listing above. Each allergen detail page contains sequences, 3D structures, epitopes, PFAM domains, and links to external databases.
Searches are case-insensitive and check if the query term is present in any of the fields.
For example, a search for fl in allergen scientific name returns Asp fl 13.
Search fields include: allergen scientific name, source scientific name, source common name,
allergen type, and allergen description.
The Peptide Match tool identifies allergen regions with an identical sequence to the user-supplied peptide. The search covers the ALL_SEQ database containing more than 1800 allergen sequences.
The Peptide Similarity tool ranks allergen regions by physico-chemical similarity to the query peptide using the PD index:
where λj is the eigenvalue of the j-th E component. Five E1–E5 descriptors are derived from 237 physico-chemical properties.
- Stick / Sphere — atomic representation
- Cartoon Rainbow — N→C terminus gradient coloring
- Cartoon gray — uniform gray cartoon (#DCDCDC)
- Cartoon SS — secondary structure coloring (helix=magenta, sheet=orange, loop=white)
- Select CYS — highlight cysteines with sticks and red labels on yellow background
- VDW Surface — solid Van der Waals surface (protein only)
- Open Surface — semi-transparent VDW surface (opacity 0.7)
- Remove Surfaces / Remove Labels — clear overlays
- Epitope Highlight — click an epitope row to highlight it on the 3D model