Patents Assigned to TwistDx, Inc.
  • Publication number: 20110065106
    Abstract: This disclosure describe three related novel methods for Recombinase-Polymerase Amplification (RPA) of a target DNA that exploit the properties of the bacterial RecA and related proteins, to invade double-stranded DNA with single stranded homologous DNA permitting sequence specific priming of DNA polymerase reactions. The disclosed methods has the advantage of not requiring thermocycling or thermophilic enzymes. Further, the improved processivity of the disclosed methods allow amplification of DNA up to hundreds of megabases in length.
    Type: Application
    Filed: April 30, 2010
    Publication date: March 17, 2011
    Applicant: TwistDx, Inc.
    Inventors: Niall A. Armes, Derek L. Stemple
  • Publication number: 20110053154
    Abstract: This disclosure provides novel reversibly terminated ribonucleotides which can be used as a reagent for DNA sequencing reactions. Methods of sequencing nucleic acids using the disclosed nucleotides are also provided.
    Type: Application
    Filed: June 21, 2010
    Publication date: March 3, 2011
    Applicant: TwistDx, Inc.
    Inventors: Olaf Piepenburg, Derek L. Stemple, Niall A. Armes
  • Patent number: 7763427
    Abstract: This disclosure describe three related novel methods for Recombinase-Polymerase Amplification (RPA) of a target DNA that exploit the properties of recombinase and related proteins, to invade double-stranded DNA with single stranded homologous DNA permitting sequence specific priming of DNA polymerase reactions. The disclosed methods have the advantage of not requiring thermocycling or thermophilic enzymes. Further, the improved processivity of the disclosed methods may allow amplification of DNA up to hundreds of megabases in length.
    Type: Grant
    Filed: May 7, 2008
    Date of Patent: July 27, 2010
    Assignee: TwistDx, Inc.
    Inventors: Olaf Piepenburg, Colin H. Williams, Niall A. Armes, Derek L. Stemple
  • Patent number: 7759061
    Abstract: This disclosure provides novel reversibly terminated ribonucleotides which can be used as a reagent for DNA sequencing reactions. Methods of sequencing nucleic acids using the disclosed nucleotides are also provided.
    Type: Grant
    Filed: June 2, 2005
    Date of Patent: July 20, 2010
    Assignee: TwistDx, Inc.
    Inventors: Olaf Piepenburg, Derek L. Stemple, Niall A. Armes
  • Patent number: 7666598
    Abstract: This disclosure describes related novel methods for Recombinase-Polymerase Amplification (RPA) of a target DNA that exploit the properties of recombinase and related proteins, to invade double-stranded DNA with single stranded homologous DNA permitting sequence specific priming of DNA polymerase reactions. The disclosed methods have the advantage of not requiring thermocycling or thermophilic enzymes, thus offering easy and affordable implementation and portability relative to other amplification methods. Further disclosed are conditions to enable real-time monitoring of RPA reactions, methods to regulate RPA reactions using light and otherwise, methods to determine the nature of amplified species without a need for gel electrophoresis, methods to improve and optimize signal to noise ratios in RPA reactions, methods to optimize oligonucleotide primer function, methods to control carryover contamination, and methods to employ sequence-specific third ‘specificity’ probes.
    Type: Grant
    Filed: April 11, 2005
    Date of Patent: February 23, 2010
    Assignee: TwistDx, Inc.
    Inventors: Olaf Piepenburg, Colin H. Williams, Niall A. Armes, Derek L. Stemple
  • Publication number: 20090325165
    Abstract: This disclosure describe three related novel methods for Recombinase-Polymerase Amplification (RPA) of a target DNA that exploit the properties of the bacterial RecA and related proteins, to invade double-stranded DNA with single stranded homologous DNA permitting sequence specific priming of DNA polymerase reactions. The disclosed methods has the advantage of not requiring thermocycling or thermophilic enzymes. Further, the improved processivity of the disclosed methods allow amplification of DNA up to hundreds of megabases in length.
    Type: Application
    Filed: January 30, 2009
    Publication date: December 31, 2009
    Applicant: TwistDx, Inc.
    Inventors: Niall A. Armes, Derek L. Stemple
  • Patent number: 7485428
    Abstract: This disclosure describe three related novel methods for Recombinase-Polymerase Amplification (RPA) of a target DNA that exploit the properties of the bacterial RecA and related proteins, to invade double-stranded DNA with single stranded homologous DNA permitting sequence specific priming of DNA polymerase reactions. The disclosed methods has the advantage of not requiring thermocycling or thermophilic enzymes. Further, the improved processivity of the disclosed methods allow amplification of DNA up to hundreds of megabases in length.
    Type: Grant
    Filed: August 13, 2007
    Date of Patent: February 3, 2009
    Assignee: TwistDx, Inc.
    Inventors: Niall A. Armes, Derek L. Stemple