Table 2.
Potential correspondence of resolved peanut, almond, hazelnut and pistachio proteins to known allergens.
Peak # | Allergen 1 | Protein Family | Molecular Weight on SDS-PAGE 2 (kDa) | Reference |
---|---|---|---|---|
Peanut (Arachis hypogea) | ||||
P1 | Ara h 9 | Nonspecific lipid-transfer protein (LTP) | 9.8 | [55] |
P2 | Ara h 5 | Profilin | 12-15 | [56] |
P3 | Ara h 6 | Conglutin 2S albumin | 14.2 | [33] |
P4 | Ara h 7 | Conglutin 2S albumin | 15.8 | [57] |
P5 | Ara h 10 | Oleosin | 16 | [58] |
P6 | Ara h 2.01 | Conglutin 2S albumin | 17 | [34] |
P7 | Ara h 2.02 | Conglutin 2S albumin | 19 | [59] |
P8/P9 | Ara h 3/4 | Legumin 11S globulin basic subunit | 23–25 | [60] |
P10-P14 | Ara h 3 | Legumin 11S globulin acidic subunit | 30–37 | [32] |
P15 | Ara h 3 | Legumin 11S globulin acidic subunit | 42–45 | [60,61] |
P16 | Ara h 3 | Legumin 11S globulin | 60 | [62,63] |
P17 | Ara h 1 | Vicilin 7S globulin | 64 | [38] |
P18 | Ara h 10 | Oleosin oligomers | 67–85 | [58] |
P19 | Lipoxygenase | 95–100 | [39] | |
Almond (Prunus dulcis) | ||||
A1 | Pru du 5 | Ribosomal protein | 10 | [44] |
A2 | Pru du 2S albumin | Conglutin 2S albumin | 12 | [64] |
A3 | Pru du 4 | Profilin | 14 | [65] |
A4 | Pru du 1 | PR-10 protein | 17 | [32] |
A5 | Pru du 6 | Legumin 11 S globulin (Amandin) | 20–22 | [66] |
A6 | Pru du 2 | PR-5 protein (Thaumatin-like protein) | 26 | [67] |
A7 | Pru du 8 | Antimicrobial seed storage protein | 31 | [46] |
A8 | Pru du 6 | Legumin 11 S globulin (Amandin) | 40 | [68] |
A9 | Pru du γ-conglutin | 7S vicilin storage protein | 45 | [67] |
A11 | Pru du 10 | Mandelonitrile lyase 2 | 60 | [69] |
Hazelnut (Corylus avellana) | ||||
H1 | Cor a 8 | Nonspecific lipid-transfer protein (LTP) | 9 | [47] |
H2 | Cor a 14 | Conglutin 2S albumin | 11 | [70] |
H3 | Cor a 2 | Profilin | 14 | [71] |
H4 | Cor a 13 | Oleosin | 14–16 | [72] |
H5 | Cor a 12 | Oleosin | 17 | [72] |
H6 | Cor a 1 | Pathogenesis-related protein | 17 | [73] |
H7-H10 | Cor a 9 | Legumin 11S globulin | 21–25; 31–35 | [47,74] |
H11 | Cor a 11 | Vicilin 7S globulin | 48 | [47] |
H12 | Cor a 11 | Vicilin 7S globulin | 55 | [75] |
H13 | Cor a 10 | Luminal binding protein | 70 | [76] |
Pistachio (Pistachia vera) | ||||
Pi1/Pi2 | Pis v 1 | Conglutin 2S albumin | 7 (17) | [48] |
Pi3 | Pis v 4 | Mn superoxide dismutase | 26 | [77] |
Pi4 | Pis v 2 | Legumin 11S globulin | 32 | [52] |
Pi5 | Pis v 5 | Legumin 11S globulin | 36 | |
Pi6/Pi7 | Pis v 2 | Legumin 11S globulin | 53 | [52] |
Pi8 | Pis v 3 | Vicilin 7S globulin | 55 (59) | [78] |
1 Sources: Available at http://www.allergen.org and Allergome Platform (available at http://www.allergome.org). 2 Molecular weights are reported from the International Union of Immunological (IUIS) allergen nomenclature website when available or from referred publications.