Patents by Inventor Xinzhan Peng
Xinzhan Peng 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: 20250011760Abstract: Provided are methods for preparing a library of target nucleic acid sequences, as well as compositions and uses therefor. Methods comprise contacting a nucleic acid sample with a plurality of adaptors capable of amplification of one or more target nucleic acid sequences under conditions wherein the target nucleic acid(s) undergo a first amplification; digesting the resulting first amplification products; repairing the digested target amplicons; and amplifying the repaired products in a second amplification, thereby producing a library of target nucleic acid sequence. Each of the plurality of adaptor compositions comprise a handle and a targeted nucleic acid sequence and optionally one or more tag sequences. Provided methods may be carried out in a single, addition only workflow reaction, allowing for rapid production of highly multiplexed targeted libraries, optionally including unique tag sequences. Resulting library compositions are useful for a variety of applications, including sequencing applications.Type: ApplicationFiled: July 10, 2024Publication date: January 9, 2025Inventors: Mark Andersen, Sihong Chen, Daniel Mazur, Xinzhan Peng, Guobin Luo
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Patent number: 12163188Abstract: Disclosed herein are modified polymerase compositions exhibiting altered polymerase activity, which can be useful in a variety of biological applications. Also disclosed herein are methods of making and using such compositions. In some embodiments, the compositions exhibit altered properties that can enhance their utility in a variety of biological applications. Such altered properties, can include, for example, altered nucleotide binding affinities, altered nucleotide incorporation kinetics, altered photostability and/or altered nanoparticle tolerance, as well as a range of other properties as disclosed herein.Type: GrantFiled: September 26, 2022Date of Patent: December 10, 2024Assignee: Life Technologies CorporationInventors: Stephen P. Hendricks, Michael Phelan, Marian Peris, Cheng-Yao Chen, Daniel Mazur, Xinzhan Peng, Amy Castillo
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Patent number: 12065643Abstract: Provided are methods for preparing a library of target nucleic acid sequences, as well as compositions and uses therefor. Methods comprise contacting a nucleic acid sample with a plurality of adaptors capable of amplification of one or more target nucleic acid sequences under conditions wherein the target nucleic acid(s) undergo a first amplification; digesting the resulting first amplification products; repairing the digested target amplicons; and amplifying the repaired products in a second amplification, thereby producing a library of target nucleic acid sequence. Each of the plurality of adaptor compositions comprise a handle and a targeted nucleic acid sequence and optionally one or more tag sequences. Provided methods may be carried out in a single, addition only workflow reaction, allowing for rapid production of highly multiplexed targeted libraries, optionally including unique tag sequences. Resulting library compositions are useful for a variety of applications, including sequencing applications.Type: GrantFiled: May 10, 2021Date of Patent: August 20, 2024Assignee: Life Technologies CorporationInventors: Mark Andersen, Daniel Mazur, Sihong Chen, Guobin Luo, Xinzhan Peng
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Publication number: 20230055565Abstract: Disclosed herein are modified polymerase compositions exhibiting altered polymerase activity, which can be useful in a variety of biological applications. Also disclosed herein are methods of making and using such compositions. In some embodiments, the compositions exhibit altered properties that can enhance their utility in a variety of biological applications. Such altered properties, can include, for example, altered nucleotide binding affinities, altered nucleotide incorporation kinetics, altered photostability and/or altered nanoparticle tolerance, as well as a range of other properties as disclosed herein.Type: ApplicationFiled: September 26, 2022Publication date: February 23, 2023Applicant: Life Technologies CorporationInventors: Stephen P. Hendricks, Michael Phelan, Marian Peris, Cheng-Yao Chen, Daniel Mazur, Xinzhan Peng, Amy Castillo
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Publication number: 20220315917Abstract: Provided are methods for preparing a library of target nucleic acid sequences, as well as compositions and uses therefor. Methods comprise contacting a nucleic acid sample with a plurality of adaptors capable of amplification of one or more target nucleic acid sequences under conditions wherein the target nucleic acid(s) undergo a first amplification; digesting the resulting first amplification products; repairing the digested target amplicons; and amplifying the repaired products in a second amplification, thereby producing a library of target nucleic acid sequence. Each of the plurality of adaptor compositions comprise a handle and a targeted nucleic acid sequence and optionally one or more tag sequences. Provided methods may be carried out in a single, addition only workflow reaction, allowing for rapid production of highly multiplexed targeted libraries, optionally including unique tag sequences. Resulting library compositions are useful for a variety of applications, including sequencing applications.Type: ApplicationFiled: May 10, 2021Publication date: October 6, 2022Inventors: Mark ANDERSEN, Daniel MAZUR, Sihong CHEN, Guobin LUO, Xinzhan PENG
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Patent number: 11453909Abstract: Disclosed herein are modified polymerase compositions exhibiting altered polymerase activity, which can be useful in a variety of biological applications. Also disclosed herein are methods of making and using such compositions. In some embodiments, the compositions exhibit altered properties that can enhance their utility in a variety of biological applications. Such altered properties, can include, for example, altered nucleotide binding affinities, altered nucleotide incorporation kinetics, altered photostability and/or altered nanoparticle tolerance, as well as a range of other properties as disclosed herein.Type: GrantFiled: September 6, 2018Date of Patent: September 27, 2022Assignee: Life Technologies CorporationInventors: Stephen P. Hendricks, Michael Phelan, Marian Peris, Cheng-Yao Chen, Daniel Mazur, Xinzhan Peng, Amy Castillo
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Patent number: 11015220Abstract: Disclosed herein are conjugates comprising a biomolecule linked to a label that have biological activity and are useful in a wide variety of biological applications. For example, provided herein are polymerase-nanoparticle conjugates including a polymerase linked to a nanoparticle, wherein the conjugate has polymerase activity. Such conjugates can exhibit reduced aggregation and improved stochiometries wherein the average biomolecule:nanoparticle ratio approaches or equals 1:1. Also disclosed herein are improved methods for preparing such conjugates, and methods and systems for using such conjugates in biological applications such as nucleotide incorporation, primer extension and single molecule sequencing.Type: GrantFiled: September 6, 2018Date of Patent: May 25, 2021Assignee: Life Technologies CorporationInventors: Theo Nikiforov, Daniel Mazur, Xinzhan Peng, Tommie Lloyd Lincecum, Yuri Belosludtsev, Howard Reese, Dmitriy Gremyachinskiy, Roman Rozhkov, John Mauro, Joseph Beechem, Eric Tulsky, Imad Naasani, Kari Haley, Joseph Treadway
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Patent number: 11008612Abstract: Provided herein are systems and methods for nucleotide incorporation reactions. The systems comprise polymerases having altered nucleotide incorporation kinetics and are linked to an energy transfer donor moiety, and nucleotide molecules linked with at least one energy transfer acceptor moiety. The donor and acceptor moieties undergo energy transfer when the polymerase and nucleotide are proximal to each other during nucleotide binding and/or nucleotide incorporation. As the donor and acceptor moieties undergo energy transfer, they generate an energy transfer signal which can be associated with nucleotide binding or incorporation. Detecting a time sequence of the generated signals, or the change in the signals, can be used to determine the order of the incorporated nucleotides, and can therefore be used to deduce the sequence of the target molecule.Type: GrantFiled: September 6, 2018Date of Patent: May 18, 2021Assignee: Life Technologies CorporationInventors: Joseph Beechem, Theo Nikiforov, Vi-En Choong, Xinzhan Peng, Guobin Luo, Cheng-Yao Chen, Michael Previte
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Patent number: 11001836Abstract: Provided are methods for preparing a library of target nucleic acid sequences, as well as compositions and uses therefor. Methods comprise contacting a nucleic acid sample with a plurality of adaptors capable of amplification of one or more target nucleic acid sequences under conditions wherein the target nucleic acid(s) undergo a first amplification; digesting the resulting first amplification products; repairing the digested target amplicons; and amplifying the repaired products in a second amplification, thereby producing a library of target nucleic acid sequence. Each of the plurality of adaptor compositions comprise a handle and a targeted nucleic acid sequence and optionally one or more tag sequences. Provided methods may be carried out in a single, addition only workflow reaction, allowing for rapid production of highly multiplexed targeted libraries, optionally including unique tag sequences. Resulting library compositions are useful for a variety of applications, including sequencing applications.Type: GrantFiled: June 29, 2018Date of Patent: May 11, 2021Assignee: Life Technologies CorporationInventors: Mark Andersen, Daniel Mazur, Sihong Chen, Guobin Luo, Xinzhan Peng
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Publication number: 20190062830Abstract: Disclosed herein are conjugates comprising a biomolecule linked to a label that have biological activity and are useful in a wide variety of biological applications. For example, provided herein are polymerase-nanoparticle conjugates including a polymerase linked to a nanoparticle, wherein the conjugate has polymerase activity. Such conjugates can exhibit reduced aggregation and improved stochiometries wherein the average biomolecule:nanoparticle ratio approaches or equals 1:1. Also disclosed herein are improved methods for preparing such conjugates, and methods and systems for using such conjugates in biological applications such as nucleotide incorporation, primer extension and single molecule sequencing.Type: ApplicationFiled: September 6, 2018Publication date: February 28, 2019Inventors: Theo NIKIFOROV, Daniel MAZUR, Xinzhan PENG, Tommie Lloyd LINCECUM, Yuri BELOSLUDTSEV, Howard REESE, Dmitriy GREMYACHINSKIY, Roman ROZHKOV, John MAURO, Joseph BEECHEM, Eric TULSKY, Imad NAASANI, Kari HALEY, Joseph TREADWAY
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Publication number: 20190062828Abstract: Disclosed herein are modified polymerase compositions exhibiting altered polymerase activity, which can be useful in a variety of biological applications. Also disclosed herein are methods of making and using such compositions. In some embodiments, the compositions exhibit altered properties that can enhance their utility in a variety of biological applications. Such altered properties, can include, for example, altered nucleotide binding affinities, altered nucleotide incorporation kinetics, altered photostability and/or altered nanoparticle tolerance, as well as a range of other properties as disclosed herein.Type: ApplicationFiled: September 6, 2018Publication date: February 28, 2019Inventors: Stephen P. HENDRICKS, Michael PHELAN, Marian PERIS, Cheng-Yao CHEN, Daniel MAZUR, Xinzhan PENG, Amy CASTILLO
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Publication number: 20190062829Abstract: Provided herein are systems and methods for nucleotide incorporation reactions. The systems comprise polymerases having altered nucleotide incorporation kinetics and are linked to an energy transfer donor moiety, and nucleotide molecules linked with at least one energy transfer acceptor moiety. The donor and acceptor moieties undergo energy transfer when the polymerase and nucleotide are proximal to each other during nucleotide binding and/or nucleotide incorporation. As the donor and acceptor moieties undergo energy transfer, they generate an energy transfer signal which can be associated with nucleotide binding or incorporation. Detecting a time sequence of the generated signals, or the change in the signals, can be used to determine the order of the incorporated nucleotides, and can therefore be used to deduce the sequence of the target molecule.Type: ApplicationFiled: September 6, 2018Publication date: February 28, 2019Inventors: Joseph BEECHEM, Theo NIKIFOROV, Vi-En CHOONG, Xinzhan PENG, Guobin LUO, Cheng-Yao CHEN, Michael PREVITE
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Patent number: 10093974Abstract: Provided herein are systems and methods for nucleotide incorporation reactions. The systems comprise polymerases having altered nucleotide incorporation kinetics and are linked to an energy transfer donor moiety, and nucleotide molecules linked with at least one energy transfer acceptor moiety. The donor and acceptor moieties undergo energy transfer when the polymerase and nucleotide are proximal to each other during nucleotide binding and/or nucleotide incorporation. As the donor and acceptor moieties undergo energy transfer, they generate an energy transfer signal which can be associated with nucleotide binding or incorporation. Detecting a time sequence of the generated signals, or the change in the signals, can be used to determine the order of the incorporated nucleotides, and can therefore be used to deduce the sequence of the target molecule.Type: GrantFiled: June 13, 2017Date of Patent: October 9, 2018Assignee: Life Technologies CorporationInventors: Joseph Beechem, Theo Nikiforov, Vi-En Choong, Xinzhan Peng, Guobin Luo, Cheng-Yao Chen, Michael Previte
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Patent number: 10093973Abstract: Disclosed herein are modified polymerase compositions exhibiting altered polymerase activity, which can be useful in a variety of biological applications. Also disclosed herein are methods of making and using such compositions. In some embodiments, the compositions exhibit altered properties that can enhance their utility in a variety of biological applications. Such altered properties, can include, for example, altered nucleotide binding affinities, altered nucleotide incorporation kinetics, altered photostability and/or altered nanoparticle tolerance, as well as a range of other properties as disclosed herein.Type: GrantFiled: June 1, 2016Date of Patent: October 9, 2018Assignee: LIFE TECHNOLOGIES CORPORATIONInventors: Stephen P. Hendricks, Michael Phelan, Marian Peris, Cheng-Yao Chen, Daniel Mazur, Xinzhan Peng, Amy Castillo
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Patent number: 10093972Abstract: Disclosed herein are conjugates comprising a biomolecule linked to a label that have biological activity and are useful in a wide variety of biological applications. For example, provided herein are polymerase-nanoparticle conjugates including a polymerase linked to a nanoparticle, wherein the conjugate has polymerase activity. Such conjugates can exhibit reduced aggregation and improved stochiometries wherein the average biomolecule:nanoparticle ratio approaches or equals 1:1. Also disclosed herein are improved methods for preparing such conjugates, and methods and systems for using such conjugates in biological applications such as nucleotide incorporation, primer extension and single molecule sequencing.Type: GrantFiled: May 27, 2016Date of Patent: October 9, 2018Assignee: Life Technologies CorporationInventors: Theo Nikiforov, Daniel Mazur, Xinzhan Peng, Tommie Lloyd Lincecum, Yuri Belosludtsev, Howard Reese, Dmitriy Gremyachinskiy, Roman Rozhkov, John Mauro, Joseph Beechem, Eric Tulsky, Imad Naasani, Kari Haley, Joseph Treadway
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Publication number: 20170283868Abstract: Provided herein are systems and methods for nucleotide incorporation reactions. The systems comprise polymerases having altered nucleotide incorporation kinetics and are linked to an energy transfer donor moiety, and nucleotide molecules linked with at least one energy transfer acceptor moiety. The donor and acceptor moieties undergo energy transfer when the polymerase and nucleotide are proximal to each other during nucleotide binding and/or nucleotide incorporation. As the donor and acceptor moieties undergo energy transfer, they generate an energy transfer signal which can be associated with nucleotide binding or incorporation. Detecting a time sequence of the generated signals, or the change in the signals, can be used to determine the order of the incorporated nucleotides, and can therefore be used to deduce the sequence of the target molecule.Type: ApplicationFiled: June 13, 2017Publication date: October 5, 2017Inventors: Joseph BEECHEM, Theo NIKIFOROV, Vi-En CHOONG, Xinzhan PENG, Guobin LUO, Cheng-Yao CHEN, Michael PREVITE
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Patent number: 9695471Abstract: Provided herein are systems and methods for nucleotide incorporation reactions. The systems comprise polymerases having altered nucleotide incorporation kinetics and are linked to an energy transfer donor moiety, and nucleotide molecules linked with at least one energy transfer acceptor moiety. The donor and acceptor moieties undergo energy transfer when the polymerase and nucleotide are proximal to each other during nucleotide binding and/or nucleotide incorporation. As the donor and acceptor moieties undergo energy transfer, they generate an energy transfer signal which can be associated with nucleotide binding or incorporation. Detecting a time sequence of the generated signals, or the change in the signals, can be used to determine the order of the incorporated nucleotides, and can therefore be used to deduce the sequence of the target molecule.Type: GrantFiled: December 29, 2014Date of Patent: July 4, 2017Assignee: Life Technologies CorporationInventors: Joseph Beechem, Theo Nikiforov, Vi-En Choong, Xinzhan Peng, Guobin Luo, Cheng-Yao Chen, Michael Previte
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Publication number: 20160265044Abstract: Disclosed herein are conjugates comprising a biomolecule linked to a label that have biological activity and are useful in a wide variety of biological applications. For example, provided herein are polymerase-nanoparticle conjugates including a polymerase linked to a nanoparticle, wherein the conjugate has polymerase activity. Such conjugates can exhibit reduced aggregation and improved stochiometries wherein the average biomolecule:nanoparticle ratio approaches or equals 1:1. Also disclosed herein are improved methods for preparing such conjugates, and methods and systems for using such conjugates in biological applications such as nucleotide incorporation, primer extension and single molecule sequencing.Type: ApplicationFiled: May 27, 2016Publication date: September 15, 2016Inventors: Theo NIKIFOROV, Daniel MAZUR, Xinzhan PENG, Tommie Lloyd LINCECUM, Yuri BELOSLUDTSEV, Howard REESE, Dmitriy GREMYACHINSKIY, Roman ROZHKOV, John MAURO, Joseph BEECHEM, Eric TULSKY, Imad NAASANI, Kari HALEY, Joseph TREADWAY
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Publication number: 20160265045Abstract: Disclosed herein are modified polymerase compositions exhibiting altered polymerase activity, which can be useful in a variety of biological applications. Also disclosed herein are methods of making and using such compositions. In some embodiments, the compositions exhibit altered properties that can enhance their utility in a variety of biological applications. Such altered properties, can include, for example, altered nucleotide binding affinities, altered nucleotide incorporation kinetics, altered photostability and/or altered nanoparticle tolerance, as well as a range of other properties as disclosed herein.Type: ApplicationFiled: June 1, 2016Publication date: September 15, 2016Inventors: Stephen P. HENDRICKS, Michael PHELAN, Marian PERIS, Cheng-Yao CHEN, Daniel MAZUR, Xinzhan PENG, Amy CASTILLO
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Patent number: 9365839Abstract: Disclosed herein are modified polymerase compositions exhibiting altered polymerase activity, which can be useful in a variety of biological applications. Also disclosed herein are methods of making and using such compositions. In some embodiments, the compositions exhibit altered properties that can enhance their utility in a variety of biological applications. Such altered properties, can include, for example, altered nucleotide binding affinities, altered nucleotide incorporation kinetics, altered photostability and/or altered nanoparticle tolerance, as well as a range of other properties as disclosed herein.Type: GrantFiled: May 12, 2015Date of Patent: June 14, 2016Assignee: Life Technologies CorporationInventors: Stephen P. Hendricks, Michael Phelan, Marian Peris, Cheng-Yao Chen, Daniel Mazur, Xinzhan Peng, Amy Castillo