Abstract:
The invention relates to methods and systems for identifying, quantitating and/or analyzing analytes from samples. The analytes may be organic or inorganic in nature and include but are not limited to pathogens such as viruses.
Abstract:
Methods of recombining nucleic acids are provided. In particular, methods for the production of partially double stranded nucleic acids comprising a 3’ overhang from an RNA target and use in methods of recombining polynucleotides is described. These methods do not require thermocycling. The present invention also provides methods of recombining and selection which allow for identification of proteins comprising improved or desired characteristics.
Abstract:
The invention relates to a nucleic acid-oligomer, modified by the chemical bond of a thermostable, photoinducible redoxactive unit. Said modified nucleic acid-oligomer can be used in a method for electrochemically detecting sequence-specific nucleic acid-oligomer hybridisation events. The modified nucleic acid-oligomer is bound to a conductive surface at one end and bears the thermostable, photoinducible redoxactive unit at the other free end. One part of the single-strand oligonucleotides is hybridised by treatment with the oligonucleotide solution (target) being analysed, which results in an increase in the electrical communication between the conductive surface and the thermostable, photoinducible redoxactive unit, said communication being initially non- or barely existent. This enables a hybridisation event to be detected using electrochemical methods such as voltammetry, amperometry or conductance measurement.
Abstract:
Polyamides comprising at least one hydrophilic C1-C10 hydrocarbyl substituent on an amide nitrogen atom, and methods for producing and using the same is provided. In particular, polyamides of formula (I) or (II) and methods for using the same for altering the ratio of charge/translational frictional drag of binding polymers to allow electrophoretic separation of polynucleotides or analogs thereof in a non-sieving liquid medium is provided, where a, q, L , P , Q , R, R , R and R are those described herein.
Abstract:
This disclosure provides for compositions and methods for the use of nucleic acid-targeting nucleic acids and complexes thereof. Genome engineering can refer to altering the genome by deleting, inserting, mutating, or substituting specific nucleic acid sequences. The altering can be gene or location specific. Genome engineering can use nucleases to cut a nucleic acid thereby generating a site for the alteration. Engineering of non-genomic nucleic acid is also contemplated.
Abstract:
Analytische Testsysteme und Analyseverfahren, bei denen zur qualitativen und quantitativen Bestimmung von Analyten in einer Probe molekulare Schalter benutzt werden, sind durch eine an den Analyten angepasste Wahl des molekularen Schalters breit einsetzbar. Der molekulare Schalter besteht aus einer Sonde, bevorzugt eine Nukleinsäure oder ein Nukleinsäurederivat, die an eine katalytische Komponente, bevorzugt ein Enzym, gekoppelt ist. Der Analyt bewirkt eine Konformationsänderung der Sonde, wodurch der Zugang zur katalytischen Komponente für ein in der Probe befindliches Substrat verändert und die Änderung des Substratumsatzes, entspricht der Änderung der katalytischen Aktivität, gemessen wird.
Abstract:
This present invention relates methods for detecting the presence of nucleic acids in a sample. In these methods, neutral capture probes are exposed to a sample possibly containing complementary nucleic acid targets. The foregoing mixture is submitted to conditions that provide for the nucleic acid targets to bind with the neutral probes thereby generating hybrids. These hybrids are submitted to positively charged reporters such as atoms, molecules or macromolecules, which electrostatically bind to the hybrids. The complexes formed between reporters and hybrids are detected by a variety of detection methods. Kits for detecting the presence of nucleic acids in a sample are also disclosed herein.
Abstract:
The present invention provides Dynamic Action Reference Tools, or DARTs, and methods of making and using DARTs. DARTs can be used, for example, for the isolation and analysis of nucleic acids, polypeptides, and the like, for regulating biological activities and investigating inter-molecular interactions, and the like. A DART is a molecule that includes a Molecular Shaft covalently linked to a Linkage Polypeptide that is covalently linked to a Molecular Point. DARTs, and DART libraries, can be formed and manipulated in vivo or in vitro . DARTs can be purified, and portions of DARTs can be exchanged with portions of other DARTs.
Abstract:
Disclosed herein are arrays of nucleic acid-protein fusions which are immobilized to a solid surface through capture probes which include a non-nucleosidic spacer group and an oligonucleotide sequence to which the fusion (such as an RNA-protein fusion) is bound. Also disclosed herein are solid supports on which these arrays are immobilized as well as methods for their preparation and use (for example, for screening for protein-compound interactions such as protein-therapeutic compound interactions).
Abstract:
This invention includes methods for identifying nucleic acids in a sample of nucleic acids by observing sequence sets present in the nucleic acids of the sample and then identifying those sequences in a nucleic acid sequence database having the sequence sets observed. In a preferred embodiment, a sequence set consists of two primary subsequences and an additional subsequence having determined mutual relationships. The methods include those for observing the sequence sets and those for performing sequence database searches. This invention also includes devices for recognizing in parallel the additional subsequences in a sample of as well as methods for the use of these devices. In a preferred embodiment, the devices include probes bound to a planar surface that recognize additional subsequence by hybridization, and the methods of use include features to improve the specificity and reproducibility of this hybridization.