The object of the present invention is to provide a method for screening a substance that affects gelatinase-mediated EphA4 processing. The present invention provides a method for screening a substance that affects gelatinase-mediated EphA4 processing, which comprises the steps of: (a) allowing a first biological composition containing gelatinase or a biologically active fragment thereof to be contacted with a second biological composition containing EphA4 in the presence and absence of a candidate substance; (b) measuring the presence or amount of the EphA4 ectodomain and/or endodomain fragment; and (c) selecting the candidate substance as a substance that affects gelatinase-mediated EphA4 processing if the results of the step (b) measured in the presence of the candidate substance are changed in comparison with the results of the step (b) measured in the absence of the candidate substance.
本发明的目的是提供一种筛选影响明胶酶介导的 EphA4 处理的物质的方法。本发明提供了一种筛选影响明胶酶介导的 EphA4 处理的物质的方法,该方法包括以下步骤:(a) 让含有明胶酶或其
生物活性片段的第一种
生物组合物与含有 EphA4 的第二种
生物组合物在存在和不存在候选物质的情况下接触;(b) 测量 EphA4 外结构域和/或内结构域片段的存在或数量;(c) 如果在有候选物质的情况下步骤(b)测量的结果与在没有候选物质的情况下步骤(b)测量的结果相比发生变化,则选择候选物质作为影响明胶酶介导的 EphA4 处理的物质。