title: Application of reversed-phase high-performance liquid chromatography in the purification of major allergens from grass pollen.
abstract: Group 1 and 5 allergens of different grasses possess similar physicochemical parameters (molecular weight, pI) and therefore separation with conventional chromatographic methods (gel filtration, ion exchange chromatography) is difficult or impossible to achieve. In this paper we describe the isolation of biologically active group 1 and 5 allergens from extracts of Lolium perenne and Phleum pratense by means of reverse phase chromatography on HPLC. The chromatograms showed very different retention times for group 1 (Rt 19.1-20.5 min) and group 5 (Rt 24.3-26.3 min) containing fractions. In addition, this technique is suitable for the separation of group 5 allergens into 5a and 5b subgroups and for the estimation of the amounts of allergen (groups 1 and 5) in the different extracts.
authors.affiliation: Department of Clinical Immunology, University of Jena, Germany.
authors.forename: B
authors.initials: B
authors.lastname: Fahlbusch
authors.forename: W D
authors.initials: WD
authors.lastname: Müller
authors.forename: O
authors.initials: O
authors.lastname: Cromwell
authors.forename: L
authors.initials: L
authors.lastname: Jäger
mesh_terms: D000485:Allergens / Q000302:isolation & purification*; D002846:Chromatography, Affinity; D002851:Chromatography, High Pressure Liquid; D006109:Poaceae / Q000276:immunology*; D011058:Pollen / Q000276:immunology*
chemical_list: D000485:Allergens