申请人:Molecular Diagnostics, Inc.
公开号:US04968602A1
公开(公告)日:1990-11-06
A process for determining the presence of a particular nucleic acid sequence in a test sample comprising (a) chemically modifying nucleic acids in the test sample either to introduce a label or a reactive site in a manner that supports their hybridizability, (b) contacting under hybridization conditions the chemically modified sample nucleic acids with a hybridizable nucleic acid probe which either, when the sample nucleic acids have been modified to introduce a label, carrys a reactive site or, when the sample nucleic acids have been modified to introduce a reactive site, is labeled, (c) contacting the solution resulting from step (b) with a immobilized form of a reactive partner to the reactive site to form a stable bond with the reactive site on the sample nucleic acids or the probe, respectively, (d) separating the resulting immobilized fraction from the remaining solution, and (e) determining the presence of the label in the separated immobilized fraction or a decrease in the label in the remaining solution.
一种用于确定测试样品中特定核酸序列存在的方法,包括(a)化学修饰测试样品中的核酸,以引入标记或反应位点,以支持它们的杂交能力,(b)在杂交条件下将化学修饰的样品核酸与可杂交的核酸探针接触,其中,当样品核酸已被修饰以引入标记时,探针携带反应位点,或者当样品核酸已被修饰以引入反应位点时,探针被标记,(c)将步骤(b)得到的溶液与反应伴侣的固定形式接触,以与样品核酸或探针上的反应位点形成稳定的键合,(d)将得到的固定化分离物与剩余溶液分离,(e)确定分离的固定化分离物中的标记存在或剩余溶液中标记的减少。