Table 1. Known food allergens from vegetables listed by the WHO/IUIS allergen database (www.allergen.org, January 2026).
| Source | Allergen | MW (kDa) | Functional category |
|---|---|---|---|
| Apium graveolens (Celery) | Api g 1a | 16 | Pathogenesis-related protein, PR-10, Bet v 1 family member |
| Api g 2 | 9 | Non-specific lipid transfer protein type 1 (nsLTP1) | |
| Api g 3 | 28 | Chlorophyll a-b binding protein, chloroplast | |
| Api g 4 | 14 | Profilin | |
| Api g 5 | 58 | FAD-containing oxidase | |
| Api g 6 | 7 | Non-specific lipid transfer protein type 2 (nsLTP2) | |
| Api g 7 | 12 | Defensin like protein 1 | |
| Asparagus officinalis (Asparagus) | Aspa o 1 | 9 | Non-specific lipid transfer protein type 1 (nsLTP1) |
| Brassica oleracea (Cabbage and others) | Bra o 3 | 9 | Non-specific lipid transfer protein type 1 (nsLTP1) |
| Daucus carota (Carrot) | Dau c 1b | 16 | Pathogenesis-related protein, PR-10, Bet v 1 family member |
| Dau c 4 | 14 | Profilin | |
| Dau c 5 | 33 | Isoflavone reductase-like protein | |
| Lactuca sativa (Cultivated lettuce) | Lac s 1 | 9 | Non-specific lipid transfer protein type 1 (nsLTP1) |
| Manihot esculenta (Cassava, manioc) | Man e 5 | 30 | Glutamic acid-rich protein |
| Capsicum annuum (Chili, bell pepper) | Cap a 1 | 23 | Osmotin-like protein (thaumatin-like protein) |
| Cap a 2 | 14 | Profilin | |
| Cap a 7 | 12 | Gibberellin-regulated protein, snakin | |
| Cucurbita maxima (Pumpkin) | Cuc ma 4 | 50 | 11S globulin |
| Cuc ma 5 | 14 | 2S albumin | |
| Solanum melongena (Eggplant) | Sola m 1 | 17 | Profilin |
| Solanum tuberosum (Potato) | Sola t 1 | 43 | Patatin |
| Sola t 2 | 21 | Cathepsin D inhibitor PDI, aspartic protease inhibitor 11, Kunitz-type protease inhibitor | |
| Sola t 3 | 21 | Cysteine protease inhibitor 1, cysteine protease inhibitor 10, Kunitz-type protease inhibitor | |
| Sola t 4 | 16 | Serine protease inhibitor 7, Kunitz-type protease inhibitor, PIG | |
| Solanum lycopersicum (Tomato) | Sola l 1 | 14 | Profilin |
| Sola l 2 | 50 | β-fructofuranosidase | |
| Sola l 3 | 9 | Non-specific lipid transfer protein type 1 (nsLTP1) | |
| Sola l 4 | 20 | Pathogenesis-related protein, PR-10, Bet v 1 family member, TSI-1 | |
| Sola l 5 | 19 | Cyclophilin | |
| Sola l 6 | 7 | Non-specific lipid transfer protein type 2 (nsLTP2) | |
| Sola l 7 | 12.5 | Non-specific lipid transfer protein type 1 (nsLTP1) |
IgE diagnostics available from aThermo Fisher Scientific (Uppsala, Sweden), bDr Fooke (Neuss, Germany).