申请人:APPLIED BIOSYSTEMS, INC.
公开号:EP0322311A2
公开(公告)日:1989-06-28
Nucleic acid sequences are detected by a multi-step process, involving labeling sample nucleic acid sequences, duplexing the labeled sample with a probe having a coupling element, immobilizing all of the duplexed probe and target sequence and unduplexed probe, separating specifically immobilized nucleic acid from free and non-specifically immobilized nucleic acid, releasing specifically immobilized nucleic acid, and detecting the presence of the sequence of interest by means of the label. The labeled sequence may be characterized by sizing, e.g. electrophoresis. The method provide for a sensitive and rapid means for accurate detection of sequence of interest in a wide variety of situations.
核酸序列的检测需要经过多个步骤,包括标记样本核酸序列、将标记的样本与具有耦合元件的探针进行双工、固定所有双工探针和目标序列以及未双工探针、分离特异性固定的核酸与游离的和非特异性固定的核酸、释放特异性固定的核酸以及通过标记检测相关序列的存在。标记的序列可通过电泳等测定方法进行表征。该方法提供了在各种情况下准确检测感兴趣序列的灵敏而快速的方法。