Patent application number | Description | Published |
20080280292 | Late-PCR - A non-symmetric polymerise chain reaction (PCR) amplification method employing a limiting primer in low concentration whose concentration-adjusted melting point at least equals, and preferably exceeds, that of the excess primer, the latter in turn not being more than 25° C. below the melting temperature of the amplicon. Assays employing such amplification and labeled hybridization probes, including assays that include a detection step following primer extension or a low-temperature probe, or both. Kits for performing such assays and primer or primer-and-probe sets for performing the foregoing amplifications and assays. | 11-13-2008 |
20090081648 | Detection and analysis of influenza virus - An assay comprising more than one primer pair and more than one detection probe, a low copy number synthetic amplicon corresponding to each of the primer pairs. The assay can detect and distinguish between various sub-types and strains of an influenza virus using any suitable nucleic acid amplification technique. Related kits and methods are also described. | 03-26-2009 |
20090111170 | Nucleic acid processing methods, kits and devices - Biological samples containing nucleic acids, RNA and DNA, are freed from bound proteins by incubation with a chaotropic agent such as a guanidium salt, and the mixture is readied for further processing by dilution of such agent to a concentration below 0.05 M without physical isolation of RNA and DNA from one another or from other components of the reaction mixture. Methods include such preparation and further processing, such as amplification and detection, which may be performed in a single container. Chaotropic agent may be supplied as a dried reagent adhered to a container. Kits may include such reagents, alone or with amplification reagents. | 04-30-2009 |
20110311971 | RT-LATE-PCR - An assay comprising more than one primer pair and more than one detection probe, a low copy number synthetic amplicon corresponding to each of the primer pairs. The assay can detect and distinguish between various sub-types and strains of an influenza virus using any suitable nucleic acid amplification technique. Related kits and methods are also described. | 12-22-2011 |
20120040352 | Primers, probes and methods for nucleic acid amplification - Homogenous detection during or following PCR amplification, preferably LATE-PCR, utilizing fluorescent DNA dye and indirectly excitable labeled primers and probes, improves reproducibility and quantification. Low-temperature homogeneous detection during or following non-symmetric PCR amplification, preferably LATE-PCR, utilizing fluorescent DNA dye and indirectly excitable labeled mismatch-tolerant probes permits analysis of complex targets. Sequencing sample preparation methods following LATE-PCR amplifications reduce complexity and permit “single-tube” processing. | 02-16-2012 |
20120088275 | REAGENTS AND METHODS FOR PCR - Modified double-stranded oligonucleotides that have terminal regions on each of their strands, that have a hybrid length of 6-50 nucleotides long, that have a melting temperature Tm of at least 32° C., and that include 2-4 modifying groups, each covalently attached to a different terminal region, preferably to a terminal nucleotide, said modifying groups being polycyclic substituents that do not have bulky portions that are non-planar, said modified olgonucleotide being capable of binding to the 5′ ex-nuclease domains of DNA polymerases and, when included in a PCR or other primer-dependent DNA amplification reaction at a concentration, generally not more than 2000 nM, that is effective for at least one of the functions of suppressing mispriming, increasing polymerase selectivity against 3′ terminal mismatches, increasing polymerase selectivity against AT-rich 3′ ends, reducing scatter among replicates, suppressing polymerase 5′ exonuclease activity, and inhibiting polymerase activity; as well as amplification reaction mixtures containing such modified double-stranded oligonucleotides, and amplification reactions, amplification assays and kits that include such modified double-stranded oligonucleotides. | 04-12-2012 |
20120198576 | METHODS FOR MAKING EMBRYONIC CELLS, EMBRYOS, AND ANIMALS SENSITIZED TO STRESS - Embodiments of the invention are based upon the discovery that exposure of cleavage-stage embryos to a stress inducer, e.g. heat shock or chemical, renders the exposed embryos more sensitive to a secondary treatment with a stress inducer, e.g. heat shock or chemical inducer. Accordingly, the present invention is directed to methods for making embryos, embryonic cells arising from them, and animals and plants that are sensitized to stress, e.g. physiologic or chemical stressors. Methods of screening for inducers and inhibitors of stress using, as test model systems, embryonic cells, embryos, animals, and plants that are sensitized to stress are also disclosed. | 08-02-2012 |
20120202203 | SINGLE PROBE, MULTIPLE TEMPERATURE, NUCLEIC ACID DETECTION METHODS, KITS, AND COMPOSITIONS - Provided herein are methods, kits, and compositions related to nucleic acid detection assays that allow discrimination of multiple target sequences with a single probe. In particular, provided herein are methods kits, and compositions that include single-probe target sequence discrimination where different target amplicons may have identical probe hybridization sequences by employing multiple temperature end-point signal probe detection. Also provided herein are methods, kits, and compositions for distinguishing between two or more target amplicons using multiple-temperature end-point probe detection. In certain embodiments, asymmetric PCR amplification methods are employed (e.g., LATE-PCR amplification). | 08-09-2012 |
20120208191 | STAPHYLOCOCCUS DETECTION ASSAYS - Provided herein are methods, kits, and compositions related to nucleic acid detection that allow the detection and discrimination of various | 08-16-2012 |
20130095479 | PRIMERS, PROBES AND METHODS FOR NUCLEIC ACID AMPLIFICATION - Homogenous detection during or following PCR amplification, preferably LATE-PCR, utilizing fluorescent DNA dye and indirectly excitable labeled primers and probes, improves reproducibility and quantification. Low-temperature homogeneous detection during or following non-symmetric PCR amplification, preferably LATE-PCR, utilizing fluorescent DNA dye and indirectly excitable labeled mismatch-tolerant probes permits analysis of complex targets. Sequencing sample preparation methods following LATE-PCR amplifications reduce complexity and permit “single-tube” processing. | 04-18-2013 |
20130203626 | COMPOSITIONS AND METHODS FOR NUCLEIC ACID BASED DIAGNOSTIC ASSAYS FOR VARIABLE SEQUENCE TARGETS - The present invention relates to compositions and methods for nucleic acid based diagnostic assays. In particular, the present invention provides primers for asymmetric PCR and other amplification modalities. In some embodiments, the present invention provides multiple primers for amplification of related nucleic acid targets in a single reaction. | 08-08-2013 |
20130210656 | LATE-PCR - A non-symmetric polymerise chain reaction (PCR) amplification method employing a limiting primer in low concentration whose concentration-adjusted melting point at least equals, and preferably exceeds, that of the excess primer, the latter in turn not being more than 25° C. below the melting temperature of the amplicon. Assays employing such amplification and labeled hybridization probes, including assays that include a detection step following primer extension or a low-temperature probe, or both. Kits for performing such assays and primer or primer-and-probe sets for performing the foregoing amplifications and assays. | 08-15-2013 |
20130295570 | COMPOSITIONS AND METHODS FOR NUCLEIC ACID BASED DIAGNOSTIC ASSAYS - The present invention relates to compositions and methods for nucleic acid based diagnostic assays. In particular, the present invention provides probes and non-amplifiable controls for asymmetric PCR and other amplification modalities. In some embodiments, the present invention provides probe design criteria for probes for use in amplification/detection assays. Further embodiments of the present invention provide non-amplifiable controls for use in generating reference probe signal ratios in amplification detection assays. | 11-07-2013 |
20130344484 | DETECTING MUTATIONS IN DNA - Provided herein are methods for detecting mutations in nucleic acid, and compositions and kits for performing such methods. In particular, nucleic acid amplification and fluorescence detection methods are provided to detect mutations and assess the mutational load. The methods are based on a set of adjacently binding probes wherein one probe is labelled with a quencher and the other is a self-indicating probe labelled with fluorophore and quencher. The binding of the probes is analysed by melting curve analysis. | 12-26-2013 |
20140004504 | COMPOSITIONS AND METHODS FOR THE DETECTION AND ANALYSIS OF AFRICAN SWINE FEVER VIRUS | 01-02-2014 |
20140004513 | COMPOSITIONS, METHODS, AND KITS FOR DETECTING AND IDENTIFYING MYCOBACTERIA | 01-02-2014 |
20140024033 | DETECTING NUCLEIC ACID VARIATIONS WITHIN POPULATIONS OF GENOMES - This disclosure relates to amplification and detection of a rare variant or variants of a DNA sequence in an abundant variant of the sequence, such as detection of a low-level somatic mutations and minority alleles in an excess of normal nucleic acid target sequences. | 01-23-2014 |
20140147846 | DETECTION OF SEQUENCE VARIANTS IN THE HUMAN EPIDERMAL GROWTH FACTOR RECEPTOR (EGFR) GENE - Provided herein are methods for detecting and identifying sequence variants in the human epidermal growth factor receptor (EGFR) gene, and compositions and kits for performing such methods. In particular, nucleic acid amplification and fluorescence detection methods are provided for the detection and identification of EGFR sequence variants. | 05-29-2014 |