Patents by Inventor Lana Saleh

Lana Saleh 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).

  • Patent number: 11939628
    Abstract: Methods and compositions are provided for identifying any of the presence, location and phasing of methylated and/or hydroxymethylated cytosines in nucleic acids including long stretches of DNA. In some embodiments, the method may comprise reacting a first portion (aliquot) of a nucleic acid sample with a dioxygenase and optionally a glucosyltransferase in a reaction mixture containing the nucleic acid followed by a reaction with a cytidine deaminase to detect and optionally map 5mC in a DNA. Optionally, a second portion can be reacted with glucosyltransferase followed by reaction with a cytidine deaminase to detect and optionally map 5hmC in a DNA.
    Type: Grant
    Filed: February 22, 2021
    Date of Patent: March 26, 2024
    Assignee: New England Biolabs, Inc.
    Inventors: Romualdas Vaisvila, Theodore B. Davis, Shengxi Guan, Zhiyi Sun, Laurence Ettwiller, Lana Saleh
  • Publication number: 20210388433
    Abstract: A method for identifying any of the presence, location and phasing of modified cytosines (C) in long stretches of nucleic acids is provided. In some embodiments, the method may comprise (a) reacting a first portion of a nucleic acid sample containing at least one C and/or at least one modified C with a DNA glucosyltransferase and a cytidine deaminase to produce a first product and/or reacting a second portion of the sample with a dioxygenase, optionally a DNA glucosyltransferase and a cytidine deaminase to produce a second product and; (b) comparing the sequences from the first and optionally the second product obtained in (a), or amplification products thereof, with each other and/or an untreated reference sequence to determine which Cs in the initial nucleic acid fragment are modified. A modified TET methylcytosine dioxygenase with improved efficiency compared to unmodified TET2 at converting methylcytosine to carboxymethylcytosine is also provided.
    Type: Application
    Filed: August 17, 2021
    Publication date: December 16, 2021
    Applicant: New England Biolabs, Inc.
    Inventors: Romualdas Vaisvila, Zhiyi Sun, Shengxi Guan, Lana Saleh, Laurence Ettwiller, Theodore B. Davis
  • Patent number: 11124825
    Abstract: A method for identifying any of the presence, location and phasing of modified cytosines (C) in long stretches of nucleic acids is provided. In some embodiments, the method may comprise (a) reacting a first portion of a nucleic acid sample containing at least one C and/or at least one modified C with a DNA glucosyltransferase and a cytidine deaminase to produce a first product and/or reacting a second portion of the sample with a dioxygenase, optionally a DNA glucosyltransferase and a cytidine deaminase to produce a second product and; (b) comparing the sequences from the first and optionally the second product obtained in (a), or amplification products thereof, with each other and/or an untreated reference sequence to determine which Cs in the initial nucleic acid fragment are modified. A modified TET methylcytosine dioxygenase with improved efficiency compared to unmodified TET2 at converting methylcytosine to carboxymethylcytosine is also provided.
    Type: Grant
    Filed: December 12, 2018
    Date of Patent: September 21, 2021
    Assignee: New England Biolabs, Inc.
    Inventors: Romualdas Vaisvila, Zhiyi Sun, Shengxi Guan, Lana Saleh, Laurence Ettwiller, Theodore B. Davis
  • Publication number: 20210207200
    Abstract: Methods and compositions are provided for identifying any of the presence, location and phasing of methylated and/or hydroxymethylated cytosines in nucleic acids including long stretches of DNA. In some embodiments, the method may comprise reacting a first portion (aliquot) of a nucleic acid sample with a dioxygenase and optionally a glucosyltransferase in a reaction mixture containing the nucleic acid followed by a reaction with a cytidine deaminase to detect and optionally map 5mC in a DNA. Optionally, a second portion can be reacted with glucosyltransferase followed by reaction with a cytidine deaminase to detect and optionally map 5hmC in a DNA.
    Type: Application
    Filed: February 22, 2021
    Publication date: July 8, 2021
    Applicant: New England Biolabs, Inc.
    Inventors: Romualdas Vaisvila, Theodore B. Davis, Shengxi Guan, Zhiyi Sun, Laurence Ettwiller, Lana Saleh
  • Patent number: 11001876
    Abstract: Methods and compositions are provided for identifying any of the presence, location and phasing of methylated and/or hydroxymethylated cytosines in nucleic acids including long stretches of DNA. In some embodiments, the method may comprise reacting a first portion (aliquot) of a nucleic acid sample with a dioxygenase and optionally a glucosyltransferase in a reaction mixture containing the nucleic acid followed by a reaction with a cytidine deaminase to detect and optionally map 5mC in a DNA. Optionally, a second portion can be reacted with glucosyltransferase followed by reaction with a cytidine deaminase to detect and optionally map 5hmC in a DNA.
    Type: Grant
    Filed: February 27, 2019
    Date of Patent: May 11, 2021
    Assignee: New England Biolabs, Inc.
    Inventors: Romualdas Vaisvila, Theodore B. Davis, Shengxi Guan, Zhiyi Sun, Laurence Ettwiller, Lana Saleh
  • Patent number: 10619200
    Abstract: A method for identifying the location and phasing of modified cytosines (C) in long stretches of nucleic acids is provided. In some embodiments, the method may comprise (a) reacting a first portion of a nucleic acid sample containing at least one C and/or at least one modified C with a DNA glucosyltransferase and a cytidine deaminase to produce a first product and optionally reacting a second portion of the sample with a dioxygenase and a cytidine deaminase to produce a second product and; (b) comparing the sequences from the first and optionally the second product obtained in (a), or amplification products thereof, with each other and/or an untreated reference sequence to determine which Cs in the initial nucleic acid fragment are modified. A modified TET methylcytosine dioxygenase that is more efficient at converting methylcytosine to carboxymethylcytosine is also provided.
    Type: Grant
    Filed: October 28, 2016
    Date of Patent: April 14, 2020
    Assignee: New England Biolabs, Inc.
    Inventors: Romualdas Vaisvila, Zhiyi Sun, Shengxi Guan, Lana Saleh, Laurence Ettwiller, Theodore B. Davis
  • Publication number: 20190185919
    Abstract: Methods and compositions are provided for identifying any of the presence, location and phasing of methylated and/or hydroxymethylated cytosines in nucleic acids including long stretches of DNA. In some embodiments, the method may comprise reacting a first portion (aliquot) of a nucleic acid sample with a dioxygenase and optionally a glucosyltransferase in a reaction mixture containing the nucleic acid followed by a reaction with a cytidine deaminase to detect and optionally map 5mC in a DNA.
    Type: Application
    Filed: February 27, 2019
    Publication date: June 20, 2019
    Applicant: New England Biolabs, Inc.
    Inventors: Romualdas Vaisvila, Theodore B. Davis, Shengxi Guan, Zhiyi Sun, Laurence Ettwiller, Lana Saleh
  • Patent number: 10260088
    Abstract: Methods and compositions are provided for identifying any of the presence, location and phasing of methylated and/or hydroxymethylated cytosines in nucleic acids including long stretches of DNA. In some embodiments, the method may comprise reacting a first portion (aliquot) of a nucleic acid sample with a dioxygenase and optionally a glucosyltransferase in a reaction mixture containing the nucleic acid followed by a reaction with a cytidine deaminase to detect and optionally map 5mC in a DNA. Optionally, a second portion can be reacted with glucosyltransferase followed by reaction with a cytidine deaminase to detect and optionally map 5hmC in a DNA.
    Type: Grant
    Filed: February 9, 2018
    Date of Patent: April 16, 2019
    Assignee: New England Biolabs, Inc.
    Inventors: Romualdas Vaisvila, Theodore B. Davis, Shengxi Guan, Zhiyi Sun, Laurence Ettwiller, Lana Saleh
  • Publication number: 20190100796
    Abstract: A method for identifying any of the presence, location and phasing of modified cytosines (C) in long stretches of nucleic acids is provided. In some embodiments, the method may comprise (a) reacting a first portion of a nucleic acid sample containing at least one C and/or at least one modified C with a DNA glucosyltransferase and a cytidine deaminase to produce a first product and/or reacting a second portion of the sample with a dioxygenase, optionally a DNA glucosyltransferase and a cytidine deaminase to produce a second product and; (b) comparing the sequences from the first and optionally the second product obtained in (a), or amplification products thereof, with each other and/or an untreated reference sequence to determine which Cs in the initial nucleic acid fragment are modified. A modified TET methylcytosine dioxygenase with improved efficiency compared to unmodified TET2 at converting methylcytosine to carboxymethylcytosine is also provided.
    Type: Application
    Filed: December 12, 2018
    Publication date: April 4, 2019
    Applicant: New England Biolabs, Inc.
    Inventors: Romualdas Vaisvila, Zhiyi Sun, Shengxi Guan, Lana Saleh, Laurence Ettwiller, Theodore B. Davis
  • Patent number: 10227646
    Abstract: A method for identifying any of the presence, location and phasing of modified cytosines (C) in long stretches of nucleic acids is provided. In some embodiments, the method may comprise (a) reacting a first portion of a nucleic acid sample containing at least one C and/or at least one modified C with a DNA glucosyltransferase and a cytidine deaminase to produce a first product and/or reacting a second portion of the sample with a dioxygenase, optionally a DNA glucosyltransferase and a cytidine deaminase to produce a second product and; (b) comparing the sequences from the first and optionally the second product obtained in (a), or amplification products thereof, with each other and/or an untreated reference sequence to determine which Cs in the initial nucleic acid fragment are modified. A modified TET methylcytosine dioxygenase with improved efficiency compared to unmodified TET2 at converting methylcytosine to carboxymethylcytosine is also provided.
    Type: Grant
    Filed: February 24, 2017
    Date of Patent: March 12, 2019
    Assignee: New England Biolabs, Inc.
    Inventors: Romualdas Vaisvila, Zhiyi Sun, Shengxi Guan, Lana Saleh, Laurence Ettwiller, Theodore B. Davis
  • Publication number: 20180312914
    Abstract: A method for identifying the location and phasing of modified cytosines (C) in long stretches of nucleic acids is provided. In some embodiments, the method may comprise (a) reacting a first portion of a nucleic acid sample containing at least one C and/or at least one modified C with a DNA glucosyltransferase and a cytidine deaminase to produce a first product and optionally reacting a second portion of the sample with a dioxygenase and a cytidine deaminase to produce a second product and; (b) comparing the sequences from the first and optionally the second product obtained in (a), or amplification products thereof, with each other and/or an untreated reference sequence to determine which Cs in the initial nucleic acid fragment are modified. A modified TET methylcytosine dioxygenase that is more efficient at converting methylcytosine to carboxymethylcytosine is also provided.
    Type: Application
    Filed: October 28, 2016
    Publication date: November 1, 2018
    Applicant: New England Biolabs, Inc.
    Inventors: Romualdas Vaisvila, Zhiyi Sun, Shengxi Guan, Lana Saleh, Laurence Ettwiller, Theodore B. Davis
  • Publication number: 20180171397
    Abstract: Methods and compositions are provided for identifying any of the presence, location and phasing of methylated and/or hydroxymethylated cytosines in nucleic acids including long stretches of DNA. In some embodiments, the method may comprise reacting a first portion (aliquot) of a nucleic acid sample with a dioxygenase and optionally a glucosyltransferase in a reaction mixture containing the nucleic acid followed by a reaction with a cytidine deaminase to detect and optionally map 5mC in a DNA. Optionally, a second portion can be reacted with glucosyltransferase followed by reaction with a cytidine deaminase to detect and optionally map 5hmC in a DNA.
    Type: Application
    Filed: February 9, 2018
    Publication date: June 21, 2018
    Applicant: New England Biolabs, Inc.
    Inventors: Romualdas Vaisvila, Theodore B. Davis, Shengxi Guan, Zhiyi Sun, Laurence Ettwiller, Lana Saleh
  • Publication number: 20170198344
    Abstract: A method for identifying any of the presence, location and phasing of modified cytosines (C) in long stretches of nucleic acids is provided. In some embodiments, the method may comprise (a) reacting a first portion of a nucleic acid sample containing at least one C and/or at least one modified C with a DNA glucosyltransferase and a cytidine deaminase to produce a first product and/or reacting a second portion of the sample with a dioxygenase, optionally a DNA glucosyltransferase and a cytidine deaminase to produce a second product and; (b) comparing the sequences from the first and optionally the second product obtained in (a), or amplification products thereof, with each other and/or an untreated reference sequence to determine which Cs in the initial nucleic acid fragment are modified. A modified TET methylcytosine dioxygenase with improved efficiency compared to unmodified TET2 at converting methylcytosine to carboxymethylcytosine is also provided.
    Type: Application
    Filed: February 24, 2017
    Publication date: July 13, 2017
    Applicant: New England Biolabs, Inc.
    Inventors: Romualdas Vaisvila, Zhiyi Sun, Shengxi Guan, Lana Saleh, Laurence Ettwiller, Theodore B. Davis
  • Patent number: 9464277
    Abstract: 5-methylpyrimidine oxygenases and their use in the modification of nucleic acids are described.
    Type: Grant
    Filed: April 20, 2015
    Date of Patent: October 11, 2016
    Assignee: New England Biolabs, Inc.
    Inventors: Yu Zheng, Lana Saleh, June Pais, Nan Dai, Richard J. Roberts, Ivan R. Correa, Jr., Megumu Mabuchi, Romualdas Vaisvila
  • Publication number: 20150218530
    Abstract: 5-methylpyrimidine oxygenases and their use in the modification of nucleic acids are described.
    Type: Application
    Filed: April 20, 2015
    Publication date: August 6, 2015
    Applicant: NEW ENGLAND BIOLABS, INC.
    Inventors: Yu Zheng, Lana Saleh, June Pais, Nan Dai, Richard J. Roberts, Ivan R. Correa, JR., Megumu Mabuchi, Romualdas Vaisvila
  • Patent number: 9040239
    Abstract: 5-methylpyrimidine oxygenases and their use in the modification of nucleic acids are described.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: May 26, 2015
    Assignee: New England Biolabs, Inc.
    Inventors: Yu Zheng, Lana Saleh, June Pais, Nan Dai, Richard J. Roberts, Ivan R. Correa, Jr., Megumu Mabuchi, Romualdas Vaisvila
  • Publication number: 20150132750
    Abstract: 5-methylpyrimidine oxygenases and their use in the modification of nucleic acids are described.
    Type: Application
    Filed: March 14, 2013
    Publication date: May 14, 2015
    Applicant: NEW ENGLAND BIOLABS, INC.
    Inventors: Yu Zheng, Lana Saleh, June Pais, Nan Dai, Richard J. Roberts, Ivan R. Correa, JR., Megumu Mabuchi, ROMUALDAS VAISVILA
  • Publication number: 20140127683
    Abstract: 5-methylpyrimidine oxygenases and their use in the modification of nucleic acids are described.
    Type: Application
    Filed: March 14, 2013
    Publication date: May 8, 2014
    Applicant: NEW ENGLAND BIOLABS, INC.
    Inventors: Yu Zheng, Lana Saleh, June Pais, Nan Dai, Richard J. Roberts, Ivan R. Correa, JR., Megumu Mabuchi