Abstract: The present invention relates to methods and kits for the specific detection of Escherichia coli (E. coli) serotypes O157:H7 and/or O145:H28. The methods and kits are based on the detection of newly identified sequence regions, which have a very high sequence identity between E. coli serotypes O157:H7 and O145:H28 and which are not present in any other known E. coli serotype or bacteria. This sequence region thus allows for selective detection of E. coli O157:1-17 and/or O145:H28 from other bacteria, especially other E. coli serotypes. Furthermore the present invention shows that a 3 bp InDel sequence in O157:H7 allows for distinguishing between O157:H7 and O145:H28, which allows for selective detection of O157:H7 over O145:H28 and vice versa. Furthermore, the invention provides oligonucleotides useful for said detection.
Abstract: The present invention pertains to a method for isolating nucleic acids from a sample, preferably a blood sample, comprising the following steps: a) obtaining a sample which has been stabilised by the use of at least one cationic detergent, wherein the cationic detergent has formed complexes with the nucleic acids; b) obtaining the complexes optionally together with other sample components from the stabilised sample, wherein said complexes comprise the nucleic acids to be isolated; c) resuspending the complexes and optionally adding one or more additives before, during and/or after resuspension, thereby obtaining a resuspended sample comprising at least i) the nucleic acid to be isolated; ii) at least one chaotropic agent; and iii) at least one chelating agent; and d) isolating nucleic acids from the resuspended sample.
Abstract: A formal-in-free fixative composition, suitable for the fixation of cells in particular in liquid samples, the use of said fixative for the treatment of biological samples, a method for the treatment of cell-comprising liquid samples, a kit comprising said fixative and a method for diagnosis of cell-comprising biological material samples.
Abstract: The present invention is directed to methods for the generation of nucleic acids from an RNA template and further nucleic acid replication. Specifically, the invention is directed to the generation and amplification of nucleic acids by reverse transcriptase-polymerase chain reaction (RT-PCR).
Abstract: The invention inter alia pertains to an electrophoresis assisted method for purifying at least one charged target molecule, preferably a nucleic acid, from a sample. Moreover, a device for use in a method for purifying a charged target molecule by electrophoresis is provided.
Type:
Grant
Filed:
June 1, 2016
Date of Patent:
October 6, 2020
Assignee:
Qiagen GmbH
Inventors:
Thorsten Singer, Sarah Fakih, Sabine Kuchler, Corinna Küppers, Lother Breitkopf, Maximilian Focke, Nicole Seip
Abstract: A system (10) for removing a pipettable substance from a pre-filled container (20), which is closed off by a lid (30) having at least one opening area (40), comprises an opening tool (100) having a tube (110), which has a cross-section corresponding substantially to the shape of the opening area and which comprises at a distal end (120) an endpiece (140) extending substantially obliquely relative to the longitudinal axis of the tube, which moves a part of the lid (30) located inside the opening area (40) towards the container when the opening tool is applied, so as to form an opening in the lid, and a point of attack (150) for a transporting tool (200). The opening tool (100) is designed to remain on the container (20) after use.
Abstract: Disclosed herein are system, method, and computer program product embodiments for building a community database of allele counts. An embodiment operates by receiving human variant datasets derived from samples generated by distinct users, wherein the users consented to share pooled variant observations with other users; determining that a plurality of variant observations meet the inclusion criteria for a pool; and calculating one or more anonymized allele statistics from the pool.
Type:
Application
Filed:
May 18, 2020
Publication date:
September 3, 2020
Applicants:
QIAGEN Redwood City, Inc, QIAGEN GmbH
Inventors:
Douglas E. Bassett, JR., Daniel R. Richards, Peer M. Schatz
Abstract: Disclosed herein are system, method, and computer program product embodiments for aiding in the interpretation of variants observed in clinical sequencing data. An embodiment operates by receiving clinical trial enrollment criteria from a user, including but not limited to genetic targeting criteria; searching a knowledge base of patient test information received from a plurality of independent entities for patients that match the clinical trial enrollment criteria; and providing to the user search results for consented patients that match the clinical trial enrollment criteria.
Type:
Application
Filed:
May 18, 2020
Publication date:
September 3, 2020
Applicants:
QIAGEN Redwood City, Inc., QIAGEN GmbH
Inventors:
Douglas E. BASSETT, JR., Daniel R. Richards, Peer M. Schatz
Abstract: The invention relates to an in vitro method for selectively amplifying a target DNA sequence from a nucleic acid sample, which method comprises running a PCR amplification of a nucleic acid sample suspected of comprising at least one target DNA sequence that differs from a reference DNA sequence at at least one predetermined target mutation site; wherein said method employs a blocking oligonucleotide complementary to a portion of the reference DNA sequence comprising the target mutation site, with the exception of a least one mismatch outside the target mutation site.
Abstract: The present invention provides method for isolating DNA molecules having a size above a certain cut-off value from a DNA containing sample, comprising a) contacting the sample with a binding buffer which comprises a chaotropic agent and a buffering agent to provide a binding mixture and binding DNA molecules having a size above the cut-off value to a binding matrix which has a silicon containing surface, wherein the cut-off value is determined by the pH value of the binding mixture; b) separating the bound DNA from the remaining sample; c) optionally washing the bound DNA; and d) optionally eluting the bound DNA from the binding matrix. Said method allows the size selective purification of DNA molecules.
Type:
Grant
Filed:
February 7, 2014
Date of Patent:
August 18, 2020
Assignee:
QIAGEN GmBH
Inventors:
Tanya Sperling, Nicola Scholle, Thorsten Singer, Margit Hiesinger
Abstract: System, method and computer program product for background compensation of a digital image containing at least one first object, the at least one first object having received at least one molecule comprising genetic information, and at least one second object, the at least one second object not having received a molecule comprising genetic information, the at least one molecule being configured to receive a fluorescent compound, the digital image being determined by an optical imaging system during emission of electromagnetic radiation by the fluorescent compound.
Type:
Grant
Filed:
December 9, 2016
Date of Patent:
August 11, 2020
Assignee:
QIAGEN GmbH
Inventors:
Thorsten Zerfass, Björn Labitzke, Maiko Lohel
Abstract: The invention relates to a method and kits for isolating and/or purifying nucleic acids, in particular, short-chain nucleic acids, from a nucleic acid containing starting material, characterised by the following method steps: (a) bonding the nucleic acids to a nucleic acid bonding support material, wherein the starting material is brought into contact with the nucleic acid bonding support material in the presence of at least one chaotropic compound and preferably isopropanol, wherein the isopropanol is present in a concentration of ?15% (v/v) and ?35% (v/v), (b) optional elution of the bonded nucleic acids from the nucleic acid bonding support material. Said method is particularly suitable for the purification of foetal DNA from maternal blood.
Type:
Grant
Filed:
October 3, 2017
Date of Patent:
August 11, 2020
Assignee:
QIAGEN GmbH
Inventors:
Christoph Ritt, Martin Horlitz, Markus Sprenger-Haussels
Abstract: The present invention relates to a method and a system for determining the positions of a plurality of objects in a digital image by discriminating true positive positions of the plurality of objects from false positive candidate positions of the plurality of objects. In particular, the invention relates to a method for determining the positions of a plurality of objects in a digital image by discriminating true positive positions of the plurality of objects from false positive candidate positions of the plurality of objects, the plurality of objects being configured to receive molecules comprising genetic information.
Type:
Grant
Filed:
December 9, 2016
Date of Patent:
August 4, 2020
Assignee:
QIAGEN GmbH
Inventors:
Thomas Unterer, Guido Schuster, Maiko Lohel, Björn Labitzke, Thorsten Zerfass
Abstract: The present invention provides methods, compositions and devices for stabilizing the extracellular nucleic acid population in a cell-containing biological sample and for stabilizing the transcriptome of contained cells.
Type:
Grant
Filed:
September 25, 2013
Date of Patent:
July 28, 2020
Assignee:
Qiagen GmbH
Inventors:
Martin Horlitz, Annabelle Schubert, Markus Sprenger-Haussels, Kalle Günther, Ralf Wyrich, Uwe Oelmüller
Abstract: Provided is inter alia to an electrophoresis assisted method for purifying a target nucleic acid from a nucleic acid containing sample, comprising (a) binding the target nucleic acid to a solid phase; (b) placing the solid phase with the bound target nucleic acid into a loading chamber of a device, wherein the device comprises a passage which comprises the loading chamber, optionally a liquid permeable separation matrix adjacent to the loading chamber, and a liquid permeable collection matrix and wherein the solid phase with the bound target nucleic acid is present in the loading chamber in a liquid medium comprising at least one water-miscible organic solvent and wherein the target nucleic acid remains bound to the solid phase in said liquid medium; (c) generating an electric field between a cathode and an anode and using a running solution that conducts the electric current, wherein the running solution dilutes the liquid medium comprised in the loading chamber resulting in elution of the bound target nu
Abstract: The present invention provides methods, compositions and devices for stabilizing the extracellular nucleic acid population in a cell-containing biological sample using an apoptosis inhibitor, preferably a caspase inhibitor, a hypertonic agent and/or a compound according to formula (1) as defined in the claims.
Type:
Grant
Filed:
September 25, 2012
Date of Patent:
June 9, 2020
Assignee:
QIAGEN GMbH
Inventors:
Martin Horlitz, Annabelle Schubert, Markus Sprenger-Haussels
Abstract: Disclosed herein are system, method, and computer program product embodiments for aiding in the interpretation of variants observed in clinical sequencing data. An embodiment operates by receiving clinical trial enrollment criteria from a user, including but not limited to genetic targeting criteria; searching a knowledge base of patient test information received from a plurality of independent entities for patients that match the clinical trial enrollment criteria; and providing to the user search results for consented patients that match the clinical trial enrollment criteria.
Type:
Grant
Filed:
June 30, 2014
Date of Patent:
May 26, 2020
Assignees:
QIAGEN Redwood City, Inc., QIAGEN GmbH
Inventors:
Douglas E. Bassett, Jr., Daniel R. Richards, Peer M. Schatz
Abstract: Modular flow cells, devices with modular flow cells, and methods of sequencing using modular flow cells, as well as systems and kits including modular flow cells, are described, permitting sequencing wherein less than the full capacity for sequencing is desired.
Abstract: Disclosed herein are system, method, and computer program product embodiments for building a community database of allele counts. An embodiment operates by receiving human variant datasets derived from samples generated by distinct users, wherein the users consented to share pooled variant observations with other users; determining that a plurality of variant observations meet the inclusion criteria for a pool; and calculating one or more anonymized allele statistics from the pool.
Type:
Grant
Filed:
August 15, 2014
Date of Patent:
May 19, 2020
Assignees:
QIAGEN Redwood City, Inc., QIAGEN GmbH
Inventors:
Douglas E. Bassett, Jr., Daniel R. Richards, Peer M. Schatz
Abstract: The present invention relates to a method for selectively depleting animal nucleic acids from non-animal nucleic acids in a sample, which comprises animal cells and at least one further type of cells, selected from microbial cells and plant cells or a combination thereof, to a lysis solution A to be used in and to a kit to carry out said method as well as to the use of a particular silica membrane as both, a filtration matrix for separating essentially intact microbial and/or plant cells from lysed animal cells and an adsorption matrix for nucleic acids, in particular in a method according to the present invention.
Type:
Grant
Filed:
April 20, 2015
Date of Patent:
May 19, 2020
Assignee:
QIAGEN GMBH
Inventors:
Johann Kubicek, Thorsten Singer, Antje-Katrin Sander, Eva Hänssler, Dominic O'Neil