Allergen Immunotherapy 2: 9 A Proteomic Style Approach to Characterize a Grass Mix Product Reveals Potential Immunotherapeutic Benefit

Background Grass allergy immunotherapies often consist of a mix of different grass extracts each containing several proteins of different physiochemical properties; however the subtle contributions of each protein are difficult to elucidate. This study aimed to identify and characterise the group 1 and 5 allergens in a 13 grass extract and to standardise the extraction method.