For example, the discovery of cross‐reactions between the plane pollen nsLTP Pla a 3 and the peach nsLTP Pru p 3 has elucidated the potential use of Pla a 3 as a biomarker in identifying plane pollen‐allergic patients at risk of developing plant food‐related nsLTP allergies, thereby improving diagnosis and treatment 56. Here, SCP2 is linked to allergic disease.