摘要:
The invention provides a unique set of nucleic acid sequences which is appropriate for use for a wide variety of applications requiring nucleic acid tags. As such, the sequence tags of the presently claimed invention may be used, for example, to label biological and nonbiological materials, in genotyping applications and in a variety of other analyses.
摘要:
The invention provides a unique set of nucleic acid sequences which is appropriate for use for a wide variety of applications requiring nucleic acid tags. As such, the sequence tags of the presently claimed invention may be used, for example, to label biological and nonbiological materials, in genotyping applications and in a variety of other analyses.
摘要:
A method for determining the genotype of one or more individuals at a polymorphic locus employs amplification of a region of DNA using primers containing tags and hybridization of the products to one or more probes on a solid support. The genotype or ratio of alleles is identified from the pattern of hybridization. The method can also be used to determine the frequency of different alleles in a population.
摘要:
The present invention relates to the amplification of nucleic acids, preferably from mRNA. A primer and promoter are added to a target sequence to be amplified and then the target is amplified in an in vitro transcription reaction.
摘要:
Methods and compounds are provided for detecting target molecules in a sample using specific binding assays. In particular, methods are provided for detecting a nucleic acid target in a sample. In one embodiment, the method comprises hybridizing a nucleic acid target, comprising a target nucleic acid sequence, to a nucleic acid probe, comprising a probe nucleic acid sequence, wherein the target comprises a binding ligand. The hydridized target is contacted with a receptor comprising multiple sites capable of binding the binding ligand to complex the receptor to the binding ligand, and the receptor is contacted with an amplification reagent, comprising a plurality of the binding ligands, to complex the amplification reagent to the receptor. The presence of the complexed amplification reagent then is detected, for example, by detecting the presence of a detectable label, such as a fluorescent label, for example, on the receptor or the amplification reagent. Optionally, the amplification reagent, comprising a plurality of the binding ligands, is contacted with labeled receptor molecules thereby to complex a plurality of labeled receptor molecules to the amplification reagent, and the labeled receptor molecules complexed to the amplification reagent are detected. This permits the detectable signal to be enhanced and amplified. In one embodiment, the binding ligand is biotin, the receptor is streptavidin, and the amplification reagent is an antibody or a DNA matrix. In another embodiment, an array of different nucleic acid probes immobilized on a surface, each having a defined sequence and location on the surface, may be used in the assays, thus permitting screening and detection of binding of a large number of nucleic acids.
摘要:
A method, composition and kit for synthesizing multiple copies of a target nucleic acid sequence autocatalytically under conditions of substantially constant temperature, ionic strength, and pH are provided in which multiple RNA copies of the target sequence autocatalytically generate additional copies using a mixture of blocked and unblocked primers and/or promoter-primers to initiate DNA and RNA synthesis, preferably with reduced non-specific product formation. The invention is useful for generating copies of a nucleic acid target sequence for purposes that include assays to quantitate specific nucleic acid sequences in clinical, environmental, forensic and similar samples, cloning and generating probes.
摘要:
Method for destroying the ability of a nucleic acid to be amplified, comprising the step of contacting the nucleic acid with bleach in an amount and for a time sufficient to inhibit the ability of that nucleic acid to be amplified in an amplification reaction.