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SDS-PAGE and immunoblotting assay using a pool of sera of PT pollen sensitized patients (lane 1) and patients negative to PT pollen but sensitized to other pollens (lane 2). 1: PT pollen allergic subjects. 2: other pollen allergic subjects. M1: Pathogenesis Related protein 1a. M2: glucan endo-1,3-beta-glucosidase-like. M3: Polygalacturonase. M4: UTP-glucose-1-phosphate uridylyltransferase.
