| Allergen | Species - Scientific Name | Species - Common Name | Allergen Type | Allergen Description | Class |
| Mal d 1 | Malus domestica | apple | foods | homolog: Bet v 1; homolog: pathogenesis related protein PR10
| IUIS |
| Mal d 1.0101 | Malus domestica | apple | foods | N
| IUIS |
| Mal d 1.0102 | Malus domestica | apple | foods | N
| IUIS |
| Mal d 1.0103 | Malus domestica | apple | foods | N
| IUIS |
| Mal d 1.0104 | Malus domestica | apple | foods | N
| IUIS |
| Mal d 1.0105 | Malus domestica | apple | foods | N
| IUIS |
| Mal d 1.0106 | Malus domestica | apple | foods | N
| IUIS |
| Mal d 1.0107 | Malus domestica | apple | foods | N
| IUIS |
| Mal d 1.0108 | Malus domestica | apple | foods | N
| IUIS |
| Mal d 1.0109 | Malus domestica | apple | foods | N
| IUIS |
| Mal d 1.0201 | Malus domestica | apple | foods | N
| IUIS |
| Mal d 1.0202 | Malus domestica | apple | foods | N
| IUIS |
| Mal d 1.0203 | Malus domestica | apple | foods | N
| IUIS |
| Mal d 1.0204 | Malus domestica | apple | foods | N
| IUIS |
| Mal d 1.0205 | Malus domestica | apple | foods | N
| IUIS |
| Mal d 1.0206 | Malus domestica | apple | foods | N
| IUIS |
| Mal d 1.0207 | Malus domestica | apple | foods | N
| IUIS |
| Mal d 1.0208 | Malus domestica | apple | foods | N
| IUIS |
| Mal d 1.0301 | Malus domestica | apple | foods | N
| IUIS |
| Mal d 1.0302 | Malus domestica | apple | foods | N
| IUIS |
| Mal d 1.0303 | Malus domestica | apple | foods | N
| IUIS |
| Mal d 1.0304 | Malus domestica | apple | foods | N
| IUIS |
| Mal d 1.0401 | Malus domestica | apple | foods | N
| IUIS |
| Mal d 1.0402 | Malus domestica | apple | foods | N
| IUIS |
| Mal d 1.0403 | Malus domestica | apple | foods | N
| IUIS |
| Mal d 2 | Malus domestica | apple | foods | homolog: thaumatin; homolog: pathogenesis related protein PR5
| IUIS |
| Mal d 3 | Malus domestica | apple | foods | lipid transfer protein; homolog: pathogenesis related protein PR14
| IUIS |
| Mal d 3.0101w | Malus domestica | apple | foods | N
| IUIS |
| Mal d 3.0102w | Malus domestica | apple | foods | N
| IUIS |
| Mal d 3.0201w | Malus domestica | apple | foods | N
| IUIS |
| Mal d 3.0202w | Malus domestica | apple | foods | N
| IUIS |
| Mal d 3.0203w | Malus domestica | apple | foods | N
| IUIS |
| Mal d 4 | Malus domestica | apple | foods | Profiling; GD4-1
| IUIS |
| Mal d 4.0101 | Malus domestica | apple | foods | N
| IUIS |
| Mal d 4.0102 | Malus domestica | apple | foods | N
| IUIS |
| Mal d 4.0201 | Malus domestica | apple | foods | N
| IUIS |
| Mal d 4.0202 | Malus domestica | apple | foods | N
| IUIS |
| Mal d 4.0301 | Malus domestica | apple | foods | N
| IUIS |
| Mal d 4.0302 | Malus domestica | apple | foods | N
| IUIS |
| Mala f 1 | Malassezia furfur | | fungi (moulds) Basidiomycotina Ustilaginomycetes | new name: Mala s 1
| non-IUIS |
| Mala f 2 | Malassezia furfur | | fungi (moulds) Basidiomycotina Ustilaginomycetes | MF1, peroxisomal membrane protein; EC 1.11.1.15; Thioredoxin reductase; Putative | IUIS |
| Mala f 3 | Malassezia furfur | | fungi (moulds) Basidiomycotina Ustilaginomycetes | MF2, peroxisomal membrane protein; EC 1.11.1.15; Thioredoxin reductase; Putative | IUIS |
| Mala f 4 | Malassezia furfur | | fungi (moulds) Basidiomycotina Ustilaginomycetes | mitochondrial malate dehydrogenase
| IUIS |
| Mala f 5 | Malassezia furfur | | fungi (moulds) Basidiomycotina Ustilaginomycetes | N
| non-IUIS |
| Mala f 6 | Malassezia furfur | | fungi (moulds) Basidiomycotina Ustilaginomycetes | N
| non-IUIS |
| Mala f 8 | Malassezia furfur | | fungi (moulds) Basidiomycotina Ustilaginomycetes | N
| non-IUIS |
| Mala f 9 | Malassezia furfur | | fungi (moulds) Basidiomycotina Ustilaginomycetes | N
| non-IUIS |
| Mala s 1 | Malassezia sympodialis | | fungi (moulds) Basidiomycotina Ustilaginomycetes | old name: Mala f 1; A maltose-binding protein
| IUIS |
| Mala s 10 | Malassezia sympodialis | | fungi (moulds) Basidiomycotina Ustilaginomycetes | heat shock protein
| IUIS |
| Mala s 11 | Malassezia sympodialis | | fungi (moulds) Basidiomycotina Ustilaginomycetes | Mn superoxide dismutase
| IUIS |
| Mala s 13 | Malassezia sympodialis | | fungi (moulds) Basidiomycotina Ustilaginomycetes | thioredoxin
| IUIS |
| Mala s 5 | Malassezia sympodialis | | fungi (moulds) Basidiomycotina Ustilaginomycetes | Mal f 2 homologue
| IUIS |
| Mala s 6 | Malassezia sympodialis | | fungi (moulds) Basidiomycotina Ustilaginomycetes | Cyclophilin homologue
| IUIS |
| Mala s 7 | Malassezia sympodialis | | fungi (moulds) Basidiomycotina Ustilaginomycetes | N
| IUIS |
| Mala s 8 | Malassezia sympodialis | | fungi (moulds) Basidiomycotina Ustilaginomycetes | N
| IUIS |
| Mala s 9 | Malassezia sympodialis | | fungi (moulds) Basidiomycotina Ustilaginomycetes | N
| IUIS |
| Mer a 1 | Mercurialis annua | | weed Asterales | profilin
| IUIS |
| Met e 1 | Metapenaeus ensis | shrimp | foods | tropomyosin
| IUIS |
| Mim n 1 | Mimachlamys nobilis | scallop | foods | tropomyosin
| non-IUIS |
| Mus m 1 | Mus musculus | mouse (urine) | animals | MUP; Alpha-2U-globulin; BS6
| IUIS |
| Mus xp 1 | Musa x paradisiaca | banana | foods | profilin
| IUIS |
| Myr p 1 | Myrmecia pilosula | Australian jumper ant | insects | Myr p II homologue
| IUIS |
| Myr p 2 | Myrmecia pilosula | Australian jumper ant | insects | Myr p I homologue
| IUIS |