A method of judging the type of a human leukocyte antigen (HLA) which is a human histocompatible antigen playing an important role in tissue transplantation and diagnosis of autoimmune diseases and drug sensitivity, said method comprising hybridizing a probe labeled with an acridinium ester through a linker arm under hybridization conditions to the product of amplification of either cDNA prepared from mRNA contained in the specimen or genomic DNA contained in the specimen; decomposing selectively the labeled portion of the unhybridized probe and that of the probe which is hybridized but has mismatching of one or more bases in the crossing; and determining the residual chemiluminescence. This method makes it possible to judge the subtype of the class II gene of HLA, which has been serologically impossible heretofore.
一种判断人类白细胞抗原(H
LA)类型的方法,H
LA是一种人类组织相容性抗原,在组织移植、自身免疫性疾病诊断和药物敏感性方面起着重要作用,所述方法包括在杂交条件下将用
吖啶酯标记的探针通过连接臂与标本中含有的mRNA制备的cDNA或标本中含有的
基因组DNA的扩增产物杂交;选择性地分解未杂交探针的标记部分和已杂交但有一个或多个碱基不匹配的探针的标记部分;并测定残余的
化学发光。这种方法可以判断 H
LA 第二类
基因的亚型,而这在以前的血清学上是不可能实现的。