Patents by Inventor Kandaswamy Vijayan
Kandaswamy Vijayan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20180305749Abstract: A method of determining a nucleic acid sequence that includes steps of: (a) contacting a primed template nucleic acid with a series of mixtures for forming ternary complexes, wherein each of the mixtures includes a polymerase and nucleotide cognates for at least two different base types suspected of being present at the next template position of the template nucleic acid; (b) monitoring the next template position for ternary complexes formed by the series of mixtures, wherein a signal state indicates presence or absence of ternary complex formed at the next template position by each individual mixture, thereby determining a series of signal states that encodes a base call for the next template position; and (c) decoding the series of signal states to distinguish a correct base call for the next template position from an error in the base call.Type: ApplicationFiled: March 15, 2018Publication date: October 25, 2018Inventors: Sean Stromberg, John VIECELI, Kandaswamy VIJAYAN, Arnold OLIPHANT
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Patent number: 10077470Abstract: The present disclosure provides compositions, methods and systems for sequencing a template nucleic acid using a polymerase based, nucleic acid binding reaction involving examination of the interaction between a polymerase and template nucleic acid in the presence of one or more unlabeled nucleotides. The methods rely, in part, on identifying a base of a template nucleic acid during nucleic acid synthesis by controlling the sequencing reaction conditions. Template nucleic acid bases may be identified during an examination step followed by an optional incorporation step.Type: GrantFiled: July 21, 2015Date of Patent: September 18, 2018Assignee: OMNIOME, INC.Inventors: Kandaswamy Vijayan, Eugene Tu, Mark A. Bernard
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Publication number: 20180208983Abstract: Method and composition for identifying cognate nucleotides in a Sequencing By Binding™ procedure, wherein one or more labeled nucleotides are detected in ternary complexes but never incorporated. Labeled nucleotides can be incorporable nucleotides that contact preformed blocked primed template nucleic acids. Alternatively, labeled nucleotides are labeled non-incorporable nucleotides. Labeled nucleotides, including labeled non-incorporable nucleotides, can be detected in ternary complexes in the same reaction mixture that incorporates a reversible terminator nucleotide to create a blocked primed template nucleic acid. Detection of ternary complexes can take place in the presence of a catalytic metal ion.Type: ApplicationFiled: January 17, 2018Publication date: July 26, 2018Applicant: Omniome, Inc.Inventors: Corey M. DAMBACHER, Joseph ROKICKI, Keunho AHN, Brittany Ann ROHRMAN, Michael NGUYEN, Kandaswamy VIJAYAN
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Publication number: 20180187245Abstract: Method of identifying a cognate nucleotide (i.e., the “next correct nucleotide”) for a primed template nucleic acid molecule. In some embodiments, an ordered or random array of primed target nucleic acids characterized by different cognate nucleotides can be evaluated using a single imaging step to identify different cognate nucleotides for a collection of different primed template nucleic acid molecules. An optional incorporation step can follow the identifying step. A polymerase different from the ones used in the binding and examination steps can be used to incorporate a nucleotide, such as a reversible terminator nucleotide, preliminary to identification of the next cognate nucleotide.Type: ApplicationFiled: December 21, 2017Publication date: July 5, 2018Applicant: Omniome, Inc.Inventors: Corey M. Dambacher, Devon Cayer, Richard LeCoultre, Joseph Rokicki, Kerry Wilson, Eugene Tu, Kandaswamy Vijayan
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Publication number: 20180155698Abstract: Provided are engineered DNA polymerases exhibiting modified functionality, and polynucleotides encoding same. Modified features include: (1) reduced catalytic activity in the presence of magnesium ions and/or (2) reduced affinity for primed template nucleic acid molecules in the absence of cognate nucleotide, and an ability to discriminate between cognate and non-cognate nucleotides under low salt conditions. Sequencing By Binding™ procedures employing the engineered polymerases have certain advantages. The engineered polymerases can have other uses as well.Type: ApplicationFiled: January 9, 2018Publication date: June 7, 2018Applicant: OMNIOME, INC.Inventors: Pinar IYIDOGAN, Mark C. WALLEN, Ying L. LIU, Kandaswamy VIJAYAN
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Patent number: 9951385Abstract: A method of nucleic acid detection including (a) contacting a primed template with a polymerase, nucleotide cognate of a first base type and nucleotide cognate of a second base type under ternary complex stabilizing conditions; (b) contacting the primed template nucleic acid with a polymerase, nucleotide cognate of the first base type and nucleotide cognate of a third base type under ternary complex stabilizing conditions; (c) examining products of (a) and (b) for signals produced by a ternary complex that includes the primed template nucleic acid, polymerase and next correct nucleotide, wherein signals for the product of (a) are ambiguous for the first and second base type, and signals for the product of (b) are ambiguous for the first and third base type; (d) disambiguating signals acquired in (c) to identify the next correct nucleotide.Type: GrantFiled: September 22, 2017Date of Patent: April 24, 2018Assignee: Omniome, Inc.Inventors: Kandaswamy Vijayan, Arnold Oliphant
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Publication number: 20180080073Abstract: Provided are compositions, methods and systems for determining the sequence of a template nucleic acid using a polymerase-based, sequencing-by-binding procedure. An examination step involves monitoring the interaction between a polymerase and template nucleic acid in the presence of one or more nucleotides. Identity of the next correct nucleotide in the sequence is determined without incorporation of any nucleotide into the structure of the primer by formation of a phosphodiester bond. An optional incorporation step can be used after the examination step to extend the primer by one or more nucleotides, thereby incrementing the template nucleotides that can be examined in a subsequent examination step. The sequencing-by-binding procedure does not require the use of labeled nucleotides or polymerases, but optionally can employ these reagents.Type: ApplicationFiled: October 4, 2017Publication date: March 22, 2018Inventors: Kandaswamy VIJAYAN, Corey M. Dambacher, Eugene Tu, Mark A. Bernard, Joseph Rokicki, Kerry Wilson
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Publication number: 20180044727Abstract: Provided are compositions, methods and systems for determining the sequence of a template nucleic acid using a polymerase-based, sequencing-by-binding procedure. An examination step involves monitoring the interaction between a polymerase and template nucleic acid in the presence of one or more nucleotides. Identity of the next correct nucleotide in the sequence is determined without incorporation of any nucleotide into the structure of the primer by formation of a phosphodiester bond. An optional incorporation step can be used after the examination step to extend the primer by one or more nucleotides, thereby incrementing the template nucleotides that can be examined in a subsequent examination step. The sequencing-by-binding procedure does not require the use of labeled nucleotides or polymerases, but optionally can employ these reagents.Type: ApplicationFiled: August 15, 2017Publication date: February 15, 2018Applicant: OMNIOME, INC.Inventors: Kandaswamy VIJAYAN, Corey M. DAMBACHER, Eugene TU, Mark A. BERNARD, Joseph ROKICKI, Kerry WILSON
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Publication number: 20180044715Abstract: Provided are methods and systems for reducing the time needed for sequencing nucleic acids. The approach relies on detecting formation of nucleotide-specific ternary complexes comprising a polymerase (e.g., a DNA polymerizing enzyme), a primed template nucleic acid molecule, and a nucleotide complementary to the templated base of the primed template nucleic acid. The methods and systems facilitate determination of the next correct nucleotide, as well as the subsequent next correct nucleotide from a cycle of examining four different nucleotides without requiring chemical incorporation of any nucleotide into the primer.Type: ApplicationFiled: July 19, 2017Publication date: February 15, 2018Applicant: Omniome, Inc.Inventors: Pinar Iyidogan, Kandaswamy Vijayan
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Publication number: 20170335380Abstract: A method including (a) providing an amplification reagent including an array of sites, and a solution having different target nucleic acids; and (b) reacting the amplification reagent to produce amplification sites each having a clonal population of amplicons from a target nucleic acid from the solution. The reacting can include simultaneously transporting the nucleic acids to the sites at an average transport rate, and amplifying the nucleic acids that transport to the sites at an average amplification rate, wherein the average amplification rate exceeds the average transport rate. The reacting can include producing a first amplicon from a nucleic acid that transports to each of the sites, and producing subsequent amplicons from the nucleic acid or from the first amplicon, wherein the average rate at which the subsequent amplicons are generated exceeds the average rate at which the first amplicon is generated.Type: ApplicationFiled: August 8, 2017Publication date: November 23, 2017Applicant: Illumina, Inc.Inventors: Min-Jui Richard Shen, Jonathan Mark Boutell, Kathryn M. Stephens, Mostafa Ronaghi, Kevin L. Gunderson, Bala Murali Venkatesan, M. Shane Bowen, Kandaswamy Vijayan
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Publication number: 20170314072Abstract: Provided are sequencing-by-binding methods of detecting cognate nucleotides using a crippled DNA polymerizing enzyme that possesses the ability to bind the next correct nucleotide downstream of a primer in a template-dependent fashion, but does not possess the activity needed to promote phosphodiester bond formation. Use of the crippled DNA polymerase permits interrogation of one nucleotide at a time, without incorporation of any nucleotide. Labeled nucleotides, such as fluorescently labeled nucleotides, can be used in conjunction with the crippled DNA polymerase to establish cognate nucleotide identity in a rapid manner.Type: ApplicationFiled: April 28, 2017Publication date: November 2, 2017Applicant: Omniome, Inc.Inventors: Kandaswamy Vijayan, Pinar Iyidogan
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Publication number: 20170314064Abstract: Provided are methods and systems for detecting formation of nucleotide-specific ternary complexes comprising a DNA polymerase, a nucleic acid, and a nucleotide complementary to the templated base of the primed template nucleic acid. The methods and systems facilitate determination of the next correct nucleotide without requiring chemical incorporation of the nucleotide into the primer. These results can even be achieved in procedures employing unlabeled, native nucleotides.Type: ApplicationFiled: April 28, 2017Publication date: November 2, 2017Applicant: Omniome, Inc.Inventors: Pinar Iyidogan, Kandaswamy Vijayan
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Patent number: 9758816Abstract: A method including (a) providing an amplification reagent including an array of sites, and a solution having different target nucleic acids; and (b) reacting the amplification reagent to produce amplification sites each having a clonal population of amplicons from a target nucleic acid from the solution. The reacting can include simultaneously transporting the nucleic acids to the sites at an average transport rate, and amplifying the nucleic acids that transport to the sites at an average amplification rate, wherein the average amplification rate exceeds the average transport rate. The reacting can include producing a first amplicon from a nucleic acid that transports to each of the sites, and producing subsequent amplicons from the nucleic acid or from the first amplicon, wherein the average rate at which the subsequent amplicons are generated exceeds the average rate at which the first amplicon is generated.Type: GrantFiled: October 9, 2015Date of Patent: September 12, 2017Assignee: Illumina, Inc.Inventors: Min-Jui Richard Shen, Jonathan Mark Boutell, Kathryn M. Stephens, Mostafa Ronaghi, Kevin Gunderson, Bala Murali Venkatesan, M. Shane Bowen, Kandaswamy Vijayan
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Publication number: 20170191125Abstract: Systems and methods for performing DNA sequencing. An example system includes a flow cell, a mechanism to generate fluid flow, a number of reservoirs for containing respective fluids, and a number valves configured such that fluid from any particular one of the plurality of reservoirs can be individually supplied to the flow cell under the impetus of the mechanism to generate fluid flow by opening of the respective valve of the particular reservoir and closing the other valves. Fluids containing test nucleotides may be sequentially flowed through the flow cell and the flow cell imaged at each step to detect binding of the test nucleotides to a sample. The nucleotide sequence of the sample is derived from the images. The sample may be arrayed on a sensing surface of a prism, and the images may be obtained, for example, by surface plasmon resonance imaging (SPRi) of the sensing surface or other techniques.Type: ApplicationFiled: December 28, 2016Publication date: July 6, 2017Applicant: Omniome, Inc.Inventors: Kandaswamy Vijayan, Maxim Abashin, Yi Zhang, Espir Kahatt, Kerry Wilson
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Patent number: 9670535Abstract: A microarray is designed capture one or more molecules of interest at each of a plurality of sites on a substrate. The sites comprise base pads, such as polymer base pads, that promote the attachment of the molecules at the sites. The microarray may be made by one or more patterning techniques to create a layout of base pads in a desired pattern. Further, the microarrays may include features to encourage clonality at the sites.Type: GrantFiled: February 28, 2014Date of Patent: June 6, 2017Assignee: Illumina, Inc.Inventors: M. Shane Bowen, Kevin L. Gunderson, Shengrong Lin, Maria Candelaria Rogert Bacigalupo, Kandaswamy Vijayan, Yir-Shyuan Wu, Bala Murali Venkatesan, James Tsay, John M. Beierle, Lorenzo Berti, Sang Ryul Park
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Publication number: 20170022553Abstract: The present disclosure provides compositions, methods and systems for sequencing a template nucleic acid using a polymerase based, nucleic acid binding reaction involving examination of the interaction between a polymerase and template nucleic acid in the presence of one or more unlabeled nucleotides. The methods rely, in part, on identifying a base of a template nucleic acid during nucleic acid synthesis by controlling the sequencing reaction conditions. Template nucleic acid bases may be identified during an examination step followed by an optional incorporation step.Type: ApplicationFiled: July 21, 2015Publication date: January 26, 2017Applicant: OMNIOME, INC.Inventors: Kandaswamy Vijayan, Eugene Tu, Mark A. Bernard
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Publication number: 20160053310Abstract: A method including (a) providing an amplification reagent including an array of sites, and a solution having different target nucleic acids; and (b) reacting the amplification reagent to produce amplification sites each having a clonal population of amplicons from a target nucleic acid from the solution. The reacting can include simultaneously transporting the nucleic acids to the sites at an average transport rate, and amplifying the nucleic acids that transport to the sites at an average amplification rate, wherein the average amplification rate exceeds the average transport rate. The reacting can include producing a first amplicon from a nucleic acid that transports to each of the sites, and producing subsequent amplicons from the nucleic acid or from the first amplicon, wherein the average rate at which the subsequent amplicons are generated exceeds the average rate at which the first amplicon is generated.Type: ApplicationFiled: October 9, 2015Publication date: February 25, 2016Applicant: ILLUMINA, INC.Inventors: Min-Jui Richard Shen, Jonathan Mark Boutell, Kathryn M. Stephens, Mostafa Ronaghi, Kevin Gunderson, Bala Murali Venkatesan, M. Shane Bowen, Kandaswamy Vijayan
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Patent number: 9169513Abstract: A method including (a) providing an amplification reagent including an array of sites, and a solution having different target nucleic acids; and (b) reacting the amplification reagent to produce amplification sites each having a clonal population of amplicons from a target nucleic acid from the solution. The reacting can include simultaneously transporting the nucleic acids to the sites at an average transport rate, and amplifying the nucleic acids that transport to the sites at an average amplification rate, wherein the average amplification rate exceeds the average transport rate. The reacting can include producing a first amplicon from a nucleic acid that transports to each of the sites, and producing subsequent amplicons from the nucleic acid or from the first amplicon, wherein the average rate at which the subsequent amplicons are generated exceeds the average rate at which the first amplicon is generated.Type: GrantFiled: October 13, 2014Date of Patent: October 27, 2015Assignee: ILLUMINA, INC.Inventors: Min-Jui Richard Shen, Jonathan Mark Boutell, Kathryn M. Stephens, Mostafa Ronaghi, Kevin Gunderson, Bala Murali Venkatesan, M. Shane Bowen, Kandaswamy Vijayan
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Publication number: 20150080230Abstract: A method including (a) providing an amplification reagent including an array of sites, and a solution having different target nucleic acids; and (b) reacting the amplification reagent to produce amplification sites each having a clonal population of amplicons from a target nucleic acid from the solution. The reacting can include simultaneously transporting the nucleic acids to the sites at an average transport rate, and amplifying the nucleic acids that transport to the sites at an average amplification rate, wherein the average amplification rate exceeds the average transport rate. The reacting can include producing a first amplicon from a nucleic acid that transports to each of the sites, and producing subsequent amplicons from the nucleic acid or from the first amplicon, wherein the average rate at which the subsequent amplicons are generated exceeds the average rate at which the first amplicon is generated.Type: ApplicationFiled: October 13, 2014Publication date: March 19, 2015Inventors: Min-Jui Richard Shen, Jonathan Mark Boutell, Kathryn M. Stephens, Mostafa Ronaghi, Kevin Gunderson, Bala Murali Venkatesan, M. Shane Bowen, Kandaswamy Vijayan
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Patent number: 8895249Abstract: A method including (a) providing an amplification reagent including an array of sites, and a solution having different target nucleic acids; and (b) reacting the amplification reagent to produce amplification sites each having a clonal population of amplicons from a target nucleic acid from the solution. The reacting can include simultaneously transporting the nucleic acids to the sites at an average transport rate, and amplifying the nucleic acids that transport to the sites at an average amplification rate, wherein the average amplification rate exceeds the average transport rate. The reacting can include producing a first amplicon from a nucleic acid that transports to each of the sites, and producing subsequent amplicons from the nucleic acid or from the first amplicon, wherein the average rate at which the subsequent amplicons are generated exceeds the average rate at which the first amplicon is generated.Type: GrantFiled: March 1, 2013Date of Patent: November 25, 2014Assignee: Illumina, Inc.Inventors: Min-Jui Richard Shen, Jonathan Mark Boutell, Kathryn M. Stephens, Mostafa Ronaghi, Kevin Gunderson, Bala Murali Venkatesan, M. Shane Bowen, Kandaswamy Vijayan