Abstract: The present invention concerns an improved method for the isolation of nucleic acids such as DNA and RNA from bacterial, plant, animal or human cells as well as from cell cultures and virus cultures, wherein the nucleic acid is immobilised on a matrix having a silicon-oxygen compound in the presence of a chaotropic agent and an alkanol, carried out in a temperature range of 36° to 75° C.
Type:
Grant
Filed:
February 13, 2006
Date of Patent:
August 9, 2016
Assignee:
QIAGEN GMBH
Inventors:
Markus Sprenger-Haus-sels, Gaby Schulte, Thomas Deutschmann, Sibylle Felker
Abstract: The present invention pertains to a method for loading a crystallization device and for manufacturing a crystallization device comprising multiple receptacles with a pre-defined amount of at least one matrix-forming compound capable of forming a crystallization matrix for a membrane protein, said method comprising the following steps: a) Modifying the state of aggregation of said at least one matrix-forming compound to a fluidic state which allows dispensing said at least one matrix-forming compound, and b) dispensing a defined amount of said at least one matrix-forming compound into at least one receptacle of the crystallization device, wherein said dispensed matrix-forming compound solidifies within said receptacle. Thereby, pre-filled crystallization devices are obtained which can be used as consumables in particular in automated crystallization processes. Also provided are protein crystallization methods using respectively prepared crystallization devices.
Type:
Grant
Filed:
September 28, 2009
Date of Patent:
May 31, 2016
Assignees:
QIAGEN GmbH, CUBE BIOTECH GmbH
Inventors:
Johann Kubicek, Frank Schaefer, Joerg Labahn, Georg Bueldt
Abstract: The present invention relates to a method for quantifying and/or detecting one or more nucleic acids of a genome in a sample, wherein in an amplification reaction, (i) a first nucleic acid is amplified, the locus that is amplified is a multicopy locus (MCL) within the genome, wherein the locus shares at least 80% sequence identity to a sequence according to SEQ ID NO. 1 over a stretch of 80 base pairs, and wherein the multicopy locus has copies on at least two different chromosomes, (ii) a second nucleic acid that has been added as an internal control (IC) is also amplified, and (iii) the amount of amplification product from the amplification of the first nucleic acid is determined.
Type:
Grant
Filed:
February 20, 2012
Date of Patent:
May 3, 2016
Assignees:
Qiagen GmbH, Qiagen Manchester Limited
Inventors:
Francesca Di Pasquale, Holger Engel, Sascha Strauss, Nicola Jo Thelwell
Abstract: The present invention concerns a method for a polymerase chain reaction, in which a template nucleic acid, at least one primer, deoxyribonucleoside triphosphates as well as a DNA polymerase with proofreading activity are used. In addition, according to this invention, at least one target substrate is added to the polymerase chain reaction, whereby the efficiency of the DNA polymerase with proofreading activity is significantly increased. Any molecule that reduces or, in the optimal case, blocks the 3?,5?-exonuclease activity of the DNA polymerase used is suitable as target substrate. Technical solutions for the added substrate (target substrate) are in particular single stranded, linear oligonucleotides, hairpin oligonucleotides and RNA and DNA molecules. Furthermore, a kit is disclosed which comprise the required reagents for the implementation of the method according to the invention.
Abstract: The invention provides for a method for quantifying one or more nucleic acids of a genome in a sample comprising the steps of, (a) amplifying a first nucleic acid to be quantified, (b) determining the amount of said first nucleic acid by comparison of the amount of amplification product from said first nucleic acid with at least one amplification product from a second template nucleic acid, (c) wherein said second template nucleic acid was generated using whole genome amplification and wherein the starting concentration of the second template nucleic acid is known.
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:
August 15, 2014
Publication date:
February 18, 2016
Applicants:
QIAGEN Redwood City, Inc., QIAGEN GmbH
Inventors:
Douglas E. Bassett, JR., Daniel R. Richards, Peer M. Schatz
Abstract: Closing arrangement for a cap of a tube in a carrier, wherein the arrangement comprises at least a first, a second and a third moveable engagement member, the first member being adapted to induce a first part of the cap rotation and the second member being adapted to induce a second part of the cap rotation and the third member being adapted to induce a third part of the cap rotation for closure.
Type:
Application
Filed:
April 9, 2014
Publication date:
February 4, 2016
Applicant:
Qiagen GMBH
Inventors:
Bruno WALDER, Sasa LAZEVSKI, Kurt STARK
Abstract: The invention relates to a method for decomposing a biological sample (9), the method having the following steps: the sample (9) is put into a container (6) which is composed of plastic, in particular, the container (6) is inserted into an adapter (2, 2a), the adapter with the closed container therein is connected to an apparatus which moves the adapter back and forth, in particular upwards, in automated fashion. This method makes it possible to decompose biological samples in automated fashion, to be precise both samples at room temperature and frozen samples. The invention also relates to an apparatus for carrying out the method, the apparatus having an adapter (2, 2a) which is predominantly composed of plastic and has sleeves (4) which are composed of metal and are intended to accommodate containers (6) which are composed of plastic, in particular.
Type:
Grant
Filed:
August 6, 2009
Date of Patent:
January 26, 2016
Assignee:
QIAGEN GMBH
Inventors:
Gerhard Baer, Dennis Mertens, Andreas Schaefer, Friederike Wilmer
Abstract: The invention relates to a sample container, comprising a housing which forms a sample space for receiving a sample and has at least one circular opening which extends in a channel-shaped manner into the sample space, and further comprising a spherical closing element, wherein the diameter of the closing element only exceeds the diameter of the opening channel in at least one (closing) portion to such an extent that the closing element can be fixed in a force-locked manner by its largest circumference in the closing portion, wherein the spherical closing element is in contact with the housing, and the opening channel between the closing portion and the inner opening forms a protrusion which reduces the opening cross section of the opening channel with respect to the opening cross section in the closing portion.
Type:
Grant
Filed:
March 9, 2012
Date of Patent:
January 26, 2016
Assignee:
QIAGEN GMBH
Inventors:
Daniel Simons, Dirk Leber, Harald Quintel, Sasa Lazevski, Bruno Walder, Andreas Bretscher, Thomas Voit
Abstract: The present disclosure relates to methods for isolating, amplifying, and/or analyzing nucleic acids in the presence of an anion exchange material by performing the isolation, amplification and/or analysis step in the presence of at least one anionic compound.
Type:
Grant
Filed:
August 5, 2010
Date of Patent:
January 19, 2016
Assignees:
QIAGEN GAITHERSBURG, INC., QIAGEN GMBH
Inventors:
Yuri Khripin, Dirk Loeffert, Roland Fabis, Nadine Krueger
Abstract: A tube for chemical, biological or biotechnological matter is provided, wherein the tube has a positioning element, the positioning element shaped for engagement in a corresponding structure provided in a carrier.
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:
June 30, 2014
Publication date:
December 31, 2015
Applicants:
QIAGEN Redwood City, Inc., QIAGEN GmbH
Inventors:
Douglas E. BASSETT, JR., Daniel R. Richards, Peer M. Schatz
Abstract: This invention relates to a process for synthesis of a cDNA in a sample, in an enzymatic reaction, wherein the process comprises the steps: simultaneous preparation of a first enzyme with polyadenylation activity, a second enzyme with reverse transcriptase activity, a buffer, at least one ribonucleotide, at least one deoxyribonucleotide, an anchor oligonucleotide; addition of a sample that comprises a ribonucleic acid; and incubation of the agents of the previous steps in one or more temperature steps, which are selected such that the first enzyme and the second enzyme show activity. The invention further relates to a reaction mixture that comprises a first enzyme with polyadenylation activity, a second enzyme with reverse transcriptase activity, optionally a buffer, optionally at least one ribonucleotide, optionally at least one deoxyribonucleotide, and optionally an anchor oligonucleotide. Moreover, the invention relates to a kit that comprises a corresponding reaction mixture.
Type:
Grant
Filed:
August 13, 2007
Date of Patent:
December 22, 2015
Assignee:
QIAGEN GMBH
Inventors:
Holger Engel, Subrahmanyam Yerramilli, Martin Kreutz, Dirk Loeffert, Christian Korfhage
Abstract: The present invention relates to a method for isolating and purifying nucleic acids, preferably comprising genomic DNA, from biological samples comprising the steps of lysing the sample using a lysis buffer comprising a source of anionic surfactant ions, optionally disintegrating the RNA present in the lysate, precipitating the surfactant ions from the lysate, and separating the nucleic acids from the precipitate and further contaminants by size-exclusion chromatography. The invention furthermore relates to a lysis buffer, a method of lysing cells and a kit for the isolation and purification of nucleic acids.
Type:
Grant
Filed:
April 8, 2011
Date of Patent:
October 20, 2015
Assignee:
QIAGEN GmbH
Inventors:
Roland Fabis, Markus Müller, Jörg Hucklenbroich, Mario Scherer
Abstract: A method for determining whether a lysate contains sufficient biological sample material for a nucleic acid amplification reaction that includes preparing the lysate in the presence of at least one compound that inhibits the amplification reaction if insufficient biological sample material was present during preparation of the lysate, but does not inhibit the amplification reaction if sufficient biological sample material was present during preparation of the lysate, subjecting the lysate to the amplification reaction, and analyzing a result of the amplification reaction. Due to the presence of the compound in the amplification reaction, no amplification signal is obtained if insufficient biological sample material was present during preparation of the lysate but an amplification signal is obtained if sufficient biological sample material was present during preparation of the lysate.
Type:
Application
Filed:
November 7, 2013
Publication date:
October 15, 2015
Applicant:
QIAGEN GMBH
Inventors:
Gerd Grosshauser, Andy Wende, Rlaf Himmelreich
Abstract: The present application discloses a labeled nucleotide comprising a label attached via a linker, wherein said labeled nucleotide has the formula wherein R1 is a residue with a negative net charge, preferably selected from the group consisting of a phosphate group, and a sulphate group; wherein R2, R3 and R4 are independently selected from the group consisting of H2, OH2, and O; wherein “n” is an integer between 0 and 16; wherein “a” is an integer between 1 and 10; wherein SP is absent or a spacer; wherein X is said label; and wherein Y is a nucleotide or nucleoside. Furthermore, oligonucleotides comprising a labeled nucleotide according to the present invention and the use as a primer in amplification based methods is disclosed herein.
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:
Application
Filed:
September 25, 2013
Publication date:
October 1, 2015
Applicant:
QIAGEN GmbH
Inventors:
Martin Horlitz, Annabelle Schubert, Markus Sprenger-Haussels, Kalle Günther, Ralf Wyrich, Uwe Oelmüller
Abstract: A method is disclosed for improved isothermal amplification of nucleic acids comprising the step of release of an essential component from a matrix under predetermined conditions. Furthermore, the invention relates to a kit comprising mesophilic enzyme and a matrix with embedded essential components for isothermal amplification. A composition comprising a matrix and a mesophilic enzyme and a method for embedding a mesophilic enzyme are disclosed as well.
Abstract: The present invention provides a method for isolating RNA including small RNA having a size of 200 nt or less from a sample, comprising the following steps: a) providing a composition comprising RNA and a chaotropic agent; b) adding alcohol; c) incubating the mixture for at least 2 min; d) adding additional alcohol to the mixture to adjust the overall alcohol concentration in the mixture to ?50%; e) binding RNA contained in the mixture to a nucleic acid binding solid phase; f) optionally washing the bound RNA; g) optionally eluting RNA from the solid phase. Due to the step-wise addition of alcohol, the overall RNA yield and the yield of small RNA is improved.
Type:
Application
Filed:
September 3, 2013
Publication date:
August 20, 2015
Applicant:
QIAGEN GmbH
Inventors:
Martin Schlumpberger, Stefanie Schröer, Vera Holländer
Abstract: The present invention relates to a method for purifying nucleic acids using a nucleic acid-binding phase which is furnished with a deficit of nucleic acid-binding groups A having a pK of 8 to 13, or which has groups A and binding-inhibiting groups N which are neutrally charged during the binding, and preferably during the elution, and the method comprises the following steps: (a) binding the nucleic acids to the nucleic acid-binding phase at a pH which is below the pH of the pK of the nucleic acid-binding groups A (binding pH); (b) eluting the nucleic acids at a pH which is above the binding pH (elution pH). In addition, corresponding kits and also nucleic acid-binding phases which can be used for purifying nucleic acids are disclosed. The technology according to the invention permits the purification of nucleic acids and, in particular, elution, with use of low salt concentrations, and so the purified nucleic acids can be directly processed, for example used in a PCR.