Peel LTP (Pru p 3) - the major allergen of peach - is methylated. A proteomic study

Purification was based on miniature reversed-phase chromatography, a procedure suitable for proteomic study. Proteomic analysis of purified LTPs revealed that the amino acid sequence of LTP was identical in all peach genotypes but, for the first time, peel LTP was found to be methylated.