The present invention relates in a first aspect to a method for the purification of biological macromolecular complexes. Typically, no chromatography steps are applied. That is, the present invention relates to a method for the purification of biological macromolecular complexes Furthermore, the present invention relates to a method for crystallization of biological macromolecular complexes comprising the step of purification as described followed by crystallization in a reservoir solution containing a water-soluble polymer. Furthermore, purified biological macromolecular complexes obtainable by the method according to the present invention are provided as well as crystallized biological macromolecular complexes. Finally, a method for determining the suitability of a candidate compound for inhibiting the 20S proteasome of an individual is provided. Said method is particularly useful in personalized medicine identifying suitable inhibitors of the 20S proteasome in individuals for treating, ameliorating or preventing a cancer, an autoimmune disease, a muscular dystrophy, emphysema or cachexia accompanying cancer or AIDS.
本发明首先涉及一种
生物大分子复合物的纯化方法。通常情况下,不使用层析步骤。此外,本发明还涉及一种
生物大分子复合物的结晶方法,包括所述的纯化步骤,然后在含有
水溶性聚合物的储液中结晶。此外,还提供了可通过本发明方法获得的纯化
生物大分子复合物以及结晶
生物大分子复合物。最后,本发明还提供了一种确定候选化合物是否适合抑制个体 20S
蛋白酶体的方法。所述方法尤其适用于个体化医疗,确定个体中合适的 20S
蛋白酶体
抑制剂,以治疗、改善或预防癌症、自身免疫性疾病、肌肉萎缩症、肺气肿或癌症或艾滋病伴随的恶病质。