摘要:
The invention provides a group of oligonucleotide probes in which the individual probes are capable of hybridizing to specific gene sequence variations so as to permit detection of said variations when said probes are labelled and so-hybridized, whereby allelic variations and gene polymorphism in samples may be detected using said group of probes. Such probe groups are useful for detecting nucleotide variations, mutations and polymorphisms by hybridization to amplified nucleic acid sequence containing such variations, mutations or polymorphisms.
摘要:
Single or multiple nucleotide variations in nucleic acid sequence can be detected in nucleic acids by a process whereby the sample suspected of containing the relevant nucleic acid is repeatedly treated with primers, nucleotide triphosphates, and an agent for polymerization of the triphosphates and then denatured, in a process which amplifies the sequence containing the nucleotide variation if it is present. In one embodiment, the sample is spotted on a membrane and treated with a labeled sequence-specific oligonucleotide probe. Hybridization of the probe to the sample is detected by the label on the probe.
摘要:
The present invention is directed to a kit for the amplification and detection of at least one specific nucleic acid sequence in a sample, which kit comprises in packaged form, a multicontainer unit comprising: (a) primer for each different specific nucleic acid sequence being amplified and detected, selected so as to provide a primer substantially complementary to each strand of each specific sequence such that the extension product synthesized from one primer, when it is separated from its complement, serves as a template for synthesis of an extension product of the other primer; (b) means for synthesizing primer extension products; and (c) means for detecting the amplified sequence or sequences.
摘要:
The present invention provides a process for detecting the presence or absence of at least one specific nucleic acid sequence in a sample or distinguishing between two different nucleic acid sequences in said sample, wherein each nucleic acid sequence to be detected consists of two separate strands, which process comprises amplifying the specific sequence or sequences (if present) by
(a) treating the sample with one oligonucleotide primer for each of the two strands of each different specific nucleic acid sequence being detected under hybridizing conditions such that for each strand of each different sequence being detected an extension product of each primer is synthesized which is complementary to each nucleic acid strand, wherein said primers are selected so as to be substantially complementary to each strand of each specific sequence such that the extension product synthesized from one primer, when it is separated from its complement, serves as a template for synthesis of an extension product of the other primer; (b) treating the product of step (a) under denaturing conditions to separate the primer extension products from their templates; (c) treating the product of step (b) with oligonucleotide primers such that a primer extension product is synthesized using each of the single strands produced in step (b) as a template; and detecting the thus amplified sequence or sequences (if present).
摘要:
The present invention is directed to a kit for the amplification and detection of at least one specific nucleic acid sequence in a sample, which kit comprises in packaged form, a multicontainer unit comprising:
(a) primer for each different specific nucleic acid sequence being amplified and detected, selected so as to provide a primer substantially complementary to each strand of each specific sequence such that the extension product synthesized from one primer, when it is separated from its complement, serves as a template for synthesis of an extension product of the other primer; (b) means for synthesizing primer extension products; and (c) means for detecting the amplified sequence or sequences.