ERAP2 and asthma: On the other hand, rs72891545 had been previously associated with the expression levels of 19 proteins [49] implicated in different functions, including some related to asthma pathophysiology, such as the maintenance of the innate immunity (ERAP2, FCN1, and SIGLEC9), collagen deposition (COL8A1), and the TGF-β signaling pathway (MSTN) (Table S4).