| 摘要 |
The invention concerns the removal of various allergologically irrelevant lo w- molecular weight components from the usual aqueous extracts of allergenically active proteins of plant pollens. Describ ed are the desorption and subsequent elimination, from traditionally prepared allergenic pollen protein extracts, of low-molecular weight pigment and other compounds which are nor- mally retained by strong electrostatic and/or hydrophobic forces. The preparation of such depigmented pollen proteins does not impair their allergenic potency or immunological specificity. The invention enables the production of fully active allergenic poll- en proteins devoid of adhering low-molecular weight substances interfering with their safety, diagnostic accuracy and clinical ef- ficacy. The purified pollen proteins represent improved starting materials f or chemical derivatization, i.e., the preparation of at- tenuated vaccines for immunotherapy. The invention also provides suitable products for investigating the molecular structure of allergenic epitopes.
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