Assay for nucleic acid sequences, particularly genetic lesions, using interactive labels

摘要

Lesions in genetic sequences, for example, the sickle cell anemia mutation in the beta globin gene, are detected by means of interactive labels in a nucleic acid hybridization assay. A signal is generated only if the labels are in physical proximity which is made dependent on whether a predetermined normal or abnormal sequence is present by exposure to appropriate conditions such as restriction enzyme digestion or stringent hybridization.