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).

  • Publication number: 20250011760
    Abstract: 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: Application
    Filed: July 10, 2024
    Publication date: January 9, 2025
    Inventors: Mark Andersen, Sihong Chen, Daniel Mazur, Xinzhan Peng, Guobin Luo
  • Patent number: 12163188
    Abstract: 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: Grant
    Filed: September 26, 2022
    Date of Patent: December 10, 2024
    Assignee: Life Technologies Corporation
    Inventors: Stephen P. Hendricks, Michael Phelan, Marian Peris, Cheng-Yao Chen, Daniel Mazur, Xinzhan Peng, Amy Castillo
  • Patent number: 12065643
    Abstract: 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: Grant
    Filed: May 10, 2021
    Date of Patent: August 20, 2024
    Assignee: Life Technologies Corporation
    Inventors: Mark Andersen, Daniel Mazur, Sihong Chen, Guobin Luo, Xinzhan Peng
  • Publication number: 20230055565
    Abstract: 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: Application
    Filed: September 26, 2022
    Publication date: February 23, 2023
    Applicant: Life Technologies Corporation
    Inventors: Stephen P. Hendricks, Michael Phelan, Marian Peris, Cheng-Yao Chen, Daniel Mazur, Xinzhan Peng, Amy Castillo
  • Publication number: 20220315917
    Abstract: 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: Application
    Filed: May 10, 2021
    Publication date: October 6, 2022
    Inventors: Mark ANDERSEN, Daniel MAZUR, Sihong CHEN, Guobin LUO, Xinzhan PENG
  • Patent number: 11453909
    Abstract: 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: Grant
    Filed: September 6, 2018
    Date of Patent: September 27, 2022
    Assignee: Life Technologies Corporation
    Inventors: Stephen P. Hendricks, Michael Phelan, Marian Peris, Cheng-Yao Chen, Daniel Mazur, Xinzhan Peng, Amy Castillo
  • Patent number: 11015220
    Abstract: 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: Grant
    Filed: September 6, 2018
    Date of Patent: May 25, 2021
    Assignee: Life Technologies Corporation
    Inventors: 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
  • Patent number: 11008612
    Abstract: 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: Grant
    Filed: September 6, 2018
    Date of Patent: May 18, 2021
    Assignee: Life Technologies Corporation
    Inventors: Joseph Beechem, Theo Nikiforov, Vi-En Choong, Xinzhan Peng, Guobin Luo, Cheng-Yao Chen, Michael Previte
  • Patent number: 11001836
    Abstract: 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: Grant
    Filed: June 29, 2018
    Date of Patent: May 11, 2021
    Assignee: Life Technologies Corporation
    Inventors: Mark Andersen, Daniel Mazur, Sihong Chen, Guobin Luo, Xinzhan Peng
  • Publication number: 20190062830
    Abstract: 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: Application
    Filed: September 6, 2018
    Publication date: February 28, 2019
    Inventors: 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
  • Publication number: 20190062828
    Abstract: 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: Application
    Filed: September 6, 2018
    Publication date: February 28, 2019
    Inventors: Stephen P. HENDRICKS, Michael PHELAN, Marian PERIS, Cheng-Yao CHEN, Daniel MAZUR, Xinzhan PENG, Amy CASTILLO
  • Publication number: 20190062829
    Abstract: 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: Application
    Filed: September 6, 2018
    Publication date: February 28, 2019
    Inventors: Joseph BEECHEM, Theo NIKIFOROV, Vi-En CHOONG, Xinzhan PENG, Guobin LUO, Cheng-Yao CHEN, Michael PREVITE
  • Patent number: 10093974
    Abstract: 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: Grant
    Filed: June 13, 2017
    Date of Patent: October 9, 2018
    Assignee: Life Technologies Corporation
    Inventors: Joseph Beechem, Theo Nikiforov, Vi-En Choong, Xinzhan Peng, Guobin Luo, Cheng-Yao Chen, Michael Previte
  • Patent number: 10093973
    Abstract: 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: Grant
    Filed: June 1, 2016
    Date of Patent: October 9, 2018
    Assignee: LIFE TECHNOLOGIES CORPORATION
    Inventors: Stephen P. Hendricks, Michael Phelan, Marian Peris, Cheng-Yao Chen, Daniel Mazur, Xinzhan Peng, Amy Castillo
  • Patent number: 10093972
    Abstract: 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: Grant
    Filed: May 27, 2016
    Date of Patent: October 9, 2018
    Assignee: Life Technologies Corporation
    Inventors: 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
  • Publication number: 20170283868
    Abstract: 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: Application
    Filed: June 13, 2017
    Publication date: October 5, 2017
    Inventors: Joseph BEECHEM, Theo NIKIFOROV, Vi-En CHOONG, Xinzhan PENG, Guobin LUO, Cheng-Yao CHEN, Michael PREVITE
  • Patent number: 9695471
    Abstract: 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: Grant
    Filed: December 29, 2014
    Date of Patent: July 4, 2017
    Assignee: Life Technologies Corporation
    Inventors: Joseph Beechem, Theo Nikiforov, Vi-En Choong, Xinzhan Peng, Guobin Luo, Cheng-Yao Chen, Michael Previte
  • Publication number: 20160265044
    Abstract: 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: Application
    Filed: May 27, 2016
    Publication date: September 15, 2016
    Inventors: 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
  • Publication number: 20160265045
    Abstract: 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: Application
    Filed: June 1, 2016
    Publication date: September 15, 2016
    Inventors: Stephen P. HENDRICKS, Michael PHELAN, Marian PERIS, Cheng-Yao CHEN, Daniel MAZUR, Xinzhan PENG, Amy CASTILLO
  • Patent number: 9365839
    Abstract: 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: Grant
    Filed: May 12, 2015
    Date of Patent: June 14, 2016
    Assignee: Life Technologies Corporation
    Inventors: Stephen P. Hendricks, Michael Phelan, Marian Peris, Cheng-Yao Chen, Daniel Mazur, Xinzhan Peng, Amy Castillo