Patent application number | Description | Published |
20110223598 | METHOD FOR REAL-TIME DETECTION OF SALMONELLA IN FOOD USING A CLEAVABLE CHIMERIC PROBE - A method is described for the real-time detection of | 09-15-2011 |
20110236891 | NUCLEIC ACID TEMPLATE PREPARATION FOR REAL-TIME PCR - The invention teaches a novel reagent formulation for the efficient preparation of a nucleic acid template from cells for high throughput real-time PCR analysis. The reagent permits rapid cell lysis and template preparation without the need for template purification and isolation. The reagent therefore dramatically improves throughput of real-time PCR analysis while at the same time permitting the rapid and sensitive real-time Catacleave PCR detection of a single molecule of nucleic acid template in as little as about 35 cycles of PCR amplification. | 09-29-2011 |
20110294674 | MODIFIED RNASE H AND DETECTION OF NUCLEIC ACID AMPLIFICATION - A reversibly modified ‘hot start’ RNAse H enzyme composition is described for the improved CATACLEAVE™ probe detection of nucleic acid sequences in a test sample. A key feature of the enzyme composition is the ability to regulate the catalytic activity of the RNAse H during the course of a reverse transcription-PCR cycle. Thus, RNAse H activity can be initially suppressed to minimize degradation of RNA:DNA primer heteroduplexes prior to reverse transcription. After cDNA synthesis is complete, RNAse H activity is induced to promote the cleavage and fluorescent detection of CATACLEAVE™ probes that anneal to target DNA sequences within the reverse transcriptase-PCR products. The inducible RNAse H enzyme is amenable to high throughput applications requiring one step reverse transcriptase CATACLEAVE™ PCR in a single reaction mix. | 12-01-2011 |
20120088246 | REAL TIME PCR DETECTION OF SINGLE NUCLEOTIDE POLYMORPHISMS - Disclosed are methods and kits for the detection of a polymorphism during real-time PCR. Real-time PCR amplification of a target nucleic acid sequence is performed using PCR primer primers that anneal to sequences flanking a single nucleotide polymorphism (SNP) of interest. The real-time PCR reaction includes a labeled probe comprising a RNA sequence that is designed to anneal to DNA sequences at the location of the SNP. An RNA:DNA heteroduplex can then form between the SNP in the PCR fragment and the probe's RNA sequences that are complementary to the SNP. RNase H cleavage of the RNA sequence in the RNA:DNA heteroduplex results in increase in intensity of the signal generated from the label that is indicative of the presence of an SNP in the target nucleic acid. | 04-12-2012 |
20130302794 | NUCLEIC ACID DETECTION BY OLIGONUCLEOTIDE PROBES CLEAVED BY BOTH EXONUCLEASE AND ENDONUCLEASE - Disclosed is a method in the fields of biochemistry and molecular biology. The method is related to improve cleavage kinetics of labeled oligonucleotide probes and, consequently, increases signal-to-noise ratio in detecting nucleic acids. | 11-14-2013 |
20140087968 | MODIFIED RNASE H AND DETECTION OF NUCLEIC ACID AMPLIFICATION - A reversibly modified ‘hot start’ RNase H enzyme composition is described for the improved CATACLEAVE™ probe detection of nucleic acid sequences in a test sample. A key feature of the enzyme composition is the ability to regulate the catalytic activity of the RNase H during the course of a reverse transcription-PCR cycle. Thus, RNase H activity can be initially suppressed to minimize degradation of RNA:DNA primer heteroduplexes prior to reverse transcription. After cDNA synthesis is complete, RNase H activity is induced to promote the cleavage and fluorescent detection of CATACLEAVE™ probes that anneal to target DNA sequences within the reverse transcriptase-PCR products. The inducible RNase H enzyme is amenable to high throughput applications requiring one step reverse transcriptase CATACLEAVE™ PCR in a single reaction mix. | 03-27-2014 |