| Patent application number | Description | Published |
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| 20090062129 | REAGENTS, METHODS, AND LIBRARIES FOR GEL-FREE BEAD-BASED SEQUENCING - The present disclosure provides methods for determining a nucleic acid sequence by performing successive cycles of duplex extension along a single stranded template. The cycles typically comprise steps of extension, ligation, and cleavage. In certain embodiments, the methods make use of extension probes containing phosphorothiolate linkages and agents capable of cleaving such linkages. Methods of determining information about a sequence using at least two distinguishably labeled probe families are provided, as are methods of performing multiple sequencing reactions on a single template. Automated sequencing systems, flow cells, image processing methods, and computer-readable media that store computer-executable instructions and/or sequence information that can be used in accordance with such methods are also provided. In certain embodiments, blocking oligonucleotides are provided to facilitate sequencing using disclosed methods. | 03-05-2009 |
| 20090181385 | Reagents, methods, and libraries for bead-based sequencing - The present invention provides methods for determining a nucleic acid sequence by performing successive cycles of duplex extension along a single stranded template. The cycles comprise steps of extension, ligation, and, preferably, cleavage. In certain embodiments the methods make use of extension probes containing phosphorothiolate linkages and employ agents appropriate to cleave such linkages. The invention provides methods of determining information about a sequence using at least two distinguishably labeled probe families. In certain embodiments the methods acquire less than 2 bits of information from each of a plurality of nucleotides in the template in each cycle. In certain embodiments the sequencing reactions are performed on templates attached to immobilized beads. The invention further provides sets of labeled probes containing phosphorothiolate linkages. In addition, the invention includes performing multiple sequencing reactions on a single template by removing initializing oligonucleotides and extended strands and performing subsequent reactions using different initializing oligonucleotides. | 07-16-2009 |
| 20090280540 | DIRECTED ENRICHMENT OF GENOMIC DNA FOR HIGH-THROUGHPUT SEQUENCING - The present invention provides microarrays of oligonucleotide primer pairs, and in particular, microarrays of primers that comprise at least one cleavable linkage. Also provided are methods to capture oligonucleotide primer pairs from one or more microarrays, and methods to use the captured oligonucleotide primer pairs, such as for amplification of a target polynucleotide sequence. In addition, methods of using a microarray to isolate, purify and/or amplify a target polynucleotide are provided. | 11-12-2009 |
| 20100297626 | Reagents, Methods, and Libraries for Bead-Based Sequencing - The present invention provides methods for determining a nucleic acid sequence by performing successive cycles of duplex extension along a single stranded template. The cycles comprise steps of extension, ligation, and, preferably, cleavage. In certain embodiments the methods make use of extension probes containing phosphorothiolate linkages and employ agents appropriate to cleave such linkages. In certain embodiments the methods make use of extension probes containing an abasic residue or a damaged base and employ agents appropriate to cleave linkages between a nucleoside and an abasic residue and/or agents appropriate to remove a damaged base from a nucleic acid. The invention provides methods of determining information about a sequence using at least two distinguishably labeled probe families. In certain embodiments the methods acquire less than 2 bits of information from each of a plurality of nucleotides in the template in each cycle. In certain embodiments the sequencing reactions are performed on templates attached to beads, which are immobilized in or on a semi-solid support. The invention further provides sets of labeled extension probes containing phosphorothiolate linkages or trigger residues that are suitable for use in the method. In addition, the invention includes performing multiple sequencing reactions on a single template by removing initializing oligonucleotides and extended strands and performing subsequent reactions using different initializing oligonucleotides. The invention further provides efficient methods for preparing templates, particularly for performing sequencing multiple different templates in parallel. The invention also provides methods for performing ligation and cleavage. The invention also provides new libraries of nucleic acid fragments containing paired tags, and methods of preparing microparticles having multiple different templates (e.g., containing paired tags) attached thereto and of sequencing the templates individually. The invention also provides automated sequencing systems, flow cells, image processing methods, and computer-readable media that store computer-executable instructions (e.g., to perform the image-processing methods) and/or sequence information. In certain embodiments the sequence information is stored in a database. | 11-25-2010 |
| 20110077169 | Reagents, Methods, and Libraries for Bead-Based Sequencing - The present invention provides methods for determining a nucleic acid sequence by performing successive cycles of duplex extension along a single stranded template. The cycles comprise steps of extension, ligation, and, preferably, cleavage. In certain embodiments the methods make use of extension probes containing phosphorothiolate linkages and employ agents appropriate to cleave such linkages. In certain embodiments the methods make use of extension probes containing an abasic residue or a damaged base and employ agents appropriate to cleave linkages between a nucleoside and an abasic residue and/or agents appropriate to remove a damaged base from a nucleic acid. The invention provides methods of determining information about a sequence using at least two distinguishably labeled probe families. In certain embodiments the methods acquire less than 2 bits of information from each of a plurality of nucleotides in the template in each cycle. In certain embodiments the sequencing reactions are performed on templates attached to beads, which are immobilized in or on a semi-solid support. The invention further provides sets of labeled extension probes containing phosphorothiolate linkages or trigger residues that are suitable for use in the method. In addition, the invention includes performing multiple sequencing reactions on a single template by removing initializing oligonucleotides and extended strands and performing subsequent reactions using different initializing oligonucleotides. The invention further provides efficient methods for preparing templates, particularly for performing sequencing multiple different templates in parallel. The invention also provides methods for performing ligation and cleavage. The invention also provides new libraries of nucleic acid fragments containing paired tags, and methods of preparing microparticles having multiple different templates (e.g., containing paired tags) attached thereto and of sequencing the templates individually. The invention also provides automated sequencing systems, flow cells, image processing methods, and computer-readable media that store computer-executable instructions (e.g., to perform the image-processing methods) and/or sequence information. In certain embodiments the sequence information is stored in a database. | 03-31-2011 |
| 20110202280 | SYSTEMS AND METHODS FOR ERROR CORRECTION IN DNA SEQUENCING - Disclosed are systems and methods for polynucleotide sequencing where detection and correction of base calling errors can be achieved without reliance on a reference sequence. In certain embodiments, redundant information can be introduced during measurement so as to allow such detection of errors. Such redundant information and measurements can be facilitated by encoding of nucleotide sequence being measured. Various examples of such encoding, redundancy introduction, and decoding are provided. | 08-18-2011 |
| 20110257019 | Directed Enrichment of Genomic DNA for High-Throughput Sequencing - The present invention provides microarrays of oligonucleotide primer pairs, and in particular, microarrays of primers that comprise at least one cleavable linkage. Also provided are methods to capture oligonucleotide primer pairs from one or more microarrays, and methods to use the captured oligonucleotide primer pairs, such as for amplification of a target polynucleotide sequence. In addition, methods of using a microarray to isolate, purify and/or amplify a target polynucleotide are provided. | 10-20-2011 |
| 20110257385 | METHODS FOR FLIP-STRAND IMMOBILIZING AND SEQUENCING NUCLEIC ACIDS - Provided herein are compositions, materials, methods and kits for immobilizing a template polynucleotide in a first orientation, and immobilizing a complementary sequence of the template polynucleotide in an orientation that is flipped compared to the orientation of the template polynucleotide. Provided herein are adaptive oligonucleotides that can be used in various nucleic acid manipulations to generate immobilized complement polynucleotides that are flipped in orientation compared to the orientation of the immobilized template polynucleotides. | 10-20-2011 |
