Most people suffering oral allergy type symptoms to peach are thought to be sensitised to the protein Pru p 1, which is similar in shape to Bet v 1 which is a protein found in birch pollen. This can cause cross reactions with other fruit.
Pru p 2 is a thaumatin protein, this is made by plants to inhibit fungal growth.
Pru p 3 is a Lipid Transfer Protein (LTP), these proteins are resistant to heat and are found in many types of plants. Patients suffering from a more severe allergy to cooked fruit may be sensitised to this group of proteins.
Pru p 4 is a profilin protein, these proteins are considered to be panallergens and can cause issues over many groups of foods.
You may have Pollen-Food Allergy Syndrome
if you suffer from cherry allergy with oral allergy symptoms to 3 or more of the foods mentioned in cross reactivity section.
You may be suffering from LTP Syndrome
if you suffer allergic reactions from eating 3 or more foods mentioned in the cross reactivity section below.
If sensitised to alder tree pollen you may have Pollen Food Allergy Syndrome and may also react to apple, peach, pear, parsley, celery, almonds and hazelnuts.
If sensitised to birch tree pollen you may have Pollen Food Allergy Syndrome and may also react to kiwi, pear, peach, plum, nectarine, apricots, apple, tomato, celery, carrot, potato, parsnip, pepper, dill, cumin, peas, coriander, fennel, hazelnut, walnut, almonds, peanuts, lentils and beans.
Common foods involved in LTP allergy include kiwi, strawberries, sunflower seeds, walnut, apple, mulberry, banana, pea, apricot, cherry, plum, almond, peach pomegranate, raspberry, tomato, grape, celery, peanut, asparagus, cabbage, broccoli, chestnut, lemon, tangerine, orange, hazelnut, lettuce, lentils, lupin, green bean, pear, mustard, wheat and maize.
Other foods containing thaumatin proteins are kiwi, chilli, peppers, apple, banana, cherry and peach.
Other foods containing plant profilins are carrot, kiwi, pineapple, celery, peanut, chilli, watermelon, orange, hazelnut, melon, strawberry, soya, barley, walnut, lychee, lupin, apple, banana, date, cherry, almond, peach, pear, mustard, tomato, aubergine and wheat.
Allergen Encyclopedia - Peach
DermNet NZ - Pollen Food Allergy Syndrome
British Dietetic Association - PFAS vs LTP Syndrome
Lipid Transfer Proteins (LTP Syndrome)
OAS – When Raw Fruit is Forbidden
Allergy information for: Peach (Prunus persica )
Allergy to Fruit - Anaphylaxis Campaign
Allergy UK - Oral Allergy Syndrome
Patient UK - Oral Allergy Syndrome
Articles and Journals
The Role of Lipid Transfer Proteins as Food and Pollen Allergens Outside the Mediterranean Area, 2021
Pollen-food allergy syndrome in children, 2020
Phenotyping peach‐allergic patients sensitized to LTP and analysing severity biomarkers, 2020
Pru p 7 sensitization is a predominant cause of severe, cypress pollen‐associated peach allergy, 2019
Lipid Transfer Protein allergy in the United Kingdom: Characterization and comparison with a matched Italian cohort, 2019
Different co-sensitizations could determine different risk assessment in peach allergy? Evaluation of an anaphylactic biomarker in Pru p 3 positive patients, 2015
The Involvement of Thaumatin-Like Proteins in Plant Food Cross-Reactivity: A Multicenter Study Using a Specific Protein Microarray, 2012
Characterization of peach thaumatin-like proteins and their identification as major peach allergens, 2010
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