申请人:CORNELL RESEARCH FOUNDATION, INC.
公开号:EP0048989A2
公开(公告)日:1982-04-07
This invention relates to methods for detecting, identifying and quantifying enzymes, for example, human proteolytic enzymes. The method broadly comprises forming an immobilized or insoluble complex comprising enzyme, enzyme inhibitor and enzyme inhibitor-antibody reactive site and then detecting and identifying, preferably quantitatively, one or more enzymes bound to the complex.
In a preferrend embodiment, a matrix, e.g. solid or semisolid surface or permeable matrix, has affixed thereto enzyme inhibitor-antibody or an immunologically active (inhibitor binding) fragment of such an antibody. This insoluble enzyme inhibitor interacting matrix is then contacted with biological fluid, e.g. body fluid, to bind one or more predetermined enzyme inhibitor-enzyme complexes, if present in the biological fluid. The bound enzyme is then detected, identified and preferably quantified.
本发明涉及检测、鉴定和定量酶的方法,例如人类蛋白水解酶。该方法大致包括形成由酶、酶抑制剂和酶抑制剂-抗体反应位点组成的固定化或不溶性复合物,然后检测和鉴定(最好是定量检测和鉴定)与该复合物结合的一种或多种酶。
在一个优选的实施方案中,基质(例如固体或半固体表面或可渗透基质)上贴有酶抑制剂-抗体或这种抗体的免疫活性(抑制剂结合)片段。然后将这种不溶性酶抑制剂相互作用基质与生物液体(如体液)接触,以结合生物液体中存在的一种或多种预定的酶抑制剂-酶复合物。然后对结合的酶进行检测、鉴定和优选定量。