Patent application number | Description | Published |
20080305479 | DETECTION AND QUANTIFICATION OF BIOMOLECULES USING MASS SPECTROMETRY - The present invention is directed in part to a method for detecting a target nucleic acid using detector oligonucleotides detectable by mass spectrometry. This method uses the 5′ to 3′ nuclease activity of a nucleic acid polymerase to cleave annealed oligonucleotide probes from hybridized duplexes and release labels for detection by mass spectrometry. This process is easily incorporated into a PCR amplification assay. The method also includes embodiments directed to quantitative analysis of target nucleic acids. | 12-11-2008 |
20090006002 | COMPARATIVE SEQUENCE ANALYSIS PROCESSES AND SYSTEMS - Provided herein are processes for rapidly identifying or determining sequence information in a sample nucleic acid by comparing sample nucleic acid sequence information to reference nucleic acid sequence information or information obtained from reference samples. Also provided are automated systems for conducting comparative sequence analyses. | 01-01-2009 |
20090111712 | DETECTION AND QUANTIFICATION OF BIOMOLECULES USING MASS SPECTROMETRY - The present invention is directed in part to a method for detecting a target nucleic acid using detector oligonucleotides detectable by mass spectrometry. This method takes advantage of the 5′ to 3′ nuclease activity of a nucleic acid polymerase to cleave annealed oligonucleotide probes from hybridized duplexes and releases labels for detection by mass spectrometry. This process is easily incorporated into a polymerase chain reaction (PCR) amplification assay. The method also includes embodiments directed to quantitative analysis of target nucleic acids. | 04-30-2009 |
20090258793 | TARGET-SPECIFIC COMPOMERS AND METHODS OF USE - Provided herein are libraries of nucleic acid species each comprising a transcription unit having a promoter region operatively linked to a coding sequence. The coding sequence of each nucleic acid species encodes a RNA cleavage substrate comprising a unique compomer species and a cleavage site. Each compomer species has a molecular mass distinguishable from the molecular mass of other compomer species in the library, and cleavage at a cleavage site releases a polynucleotide comprising the compomer species from the RNA cleavage substrate. | 10-15-2009 |
20090317818 | RESTRICTION ENDONUCLEASE ENHANCED POLYMORPHIC SEQUENCE DETECTION - Provided in part herein is an improved method for the detection of specific polymorphic alleles in a mixed DNA population. The method comprises enriching the relative percentage of a given polymorphic allele that is exponentially amplifiable by PCR. Provided also are methods for selectively enriching target nucleic acid, for example, fetal nucleic acid in a maternal sample. In the case of detecting fetal nucleic acid in a maternal sample, a restriction enzyme is introduced that can discriminate between the alleles of a polymorphic site. In some embodiments, the maternal allele is digested and nucleic acid comprising the paternal allele is relatively enriched. | 12-24-2009 |
20110160093 | DETECTION AND QUANTIFICATION OF BIOMOLECULES USING MASS SPECTROMETRY - The present invention is directed in part to a method for detecting a target nucleic acid using detector oligonucleotides detectable by mass spectrometry. This method takes advantage of the 5′ to 3′ nuclease activity of a nucleic acid polymerase to cleave annealed oligonucleotide probes from hybridized duplexes and releases labels for detection by mass spectrometry. This process is easily incorporated into a polymerase chain reaction (PCR) amplification assay. The method also includes embodiments directed to quantitative analysis of target nucleic acids. | 06-30-2011 |
20120015826 | METHODS FOR HIGH LEVEL MULTIPLEXED POLYMERASE CHAIN REACTIONS AND HOMOGENOUS MASS EXTENSION REACTIONS - Provided herein are optimized methods for performing multiplexed detection of a plurality of sequence variations. Also provided are methods for performing multiplexed amplification of target nucleic acid. | 01-19-2012 |
20120046178 | PRODUCTS AND PROCESSES FOR MULTIPLEX NUCLEIC ACID IDENTIFICATION - Provided herein are products and processes for detecting the presence or absence of multiple target nucleic acids. Certain methods include amplifying the target nucleic acids, or portion thereof; extending oligonucleotides that specifically hybridize to the amplicons, where the oligonucleotides include distinguishable labels and a capture agent; capturing the extended oligonucleotides to a solid phase via the capture agent; releasing and detecting the distinguishable label, and thereby determining the presence or absence of each target nucleic acid by the presence or absence of the distinguishable label. | 02-23-2012 |
20120115737 | RESTRICTION ENDONUCLEASE ENHANCED POLYMORPHIC SEQUENCE DETECTION - Provided is an improved method for the detection of specific polymorphic alleles in a mixed DNA population. The method comprises enriching the relative percentage of a given polymorphic allele that is exponentially amplifiable by PCR. Also provided are methods for selectively enriching target nucleic acid, for example, fetal nucleic acid in a maternal sample. In the case of detecting fetal nucleic acid in a maternal sample, a restriction enzyme is introduced that can discriminate between the alleles of a polymorphic site. Preferably, the maternal allele is digested and nucleic acid comprising the paternal allele is relatively enriched. | 05-10-2012 |
20120270217 | RESTRICTION ENDONUCLEASE ENHANCED POLYMORPHIC SEQUENCE DETECTION - Provided in part herein is an improved method for the detection of specific polymorphic alleles in a mixed DNA population. The method comprises enriching the relative percentage of a given polymorphic allele that is exponentially amplifiable by PCR. Provided also are methods for selectively enriching target nucleic acid, for example, fetal nucleic acid in a maternal sample. In the case of detecting fetal nucleic acid in a maternal sample, a restriction enzyme is introduced that can discriminate between the alleles of a polymorphic site. In some embodiments, the maternal allele is digested and nucleic acid comprising the paternal allele is relatively enriched. | 10-25-2012 |
20130237428 | METHODS FOR HIGH LEVEL MULTIPLEXED POLYMERASE CHAIN REACTIONS AND HOMOGENEOUS MASS EXTENSION REACTIONS - Provided herein are optimized methods for performing multiplexed detection of a plurality of sequence variations. Also provided are methods for performing multiplexed amplification of target nucleic acid. | 09-12-2013 |