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    • 81. 发明授权
    • METHODS, KITS AND COMPOSITIONS FOR THE IDENTIFICATION OF NUCLEIC ACIDS ELECTROSTATICALLY BOUND TO MATRICES
    • 方法,REAGENTIENSÄTZE和组合物用于识别静态到相关核酸DIES
    • EP1137807B1
    • 2004-09-08
    • EP99960659.3
    • 1999-12-08
    • Boston Probes, Inc.
    • JOHANSEN, Jack, T.HYLDIG-NIELSEN, Jens, J.FIANDACA, Mark, J.COULL, James, M.
    • C12Q1/68
    • C12Q1/6816C12Q1/6834C12Q1/6837C12Q2563/131C12Q2525/107
    • This invention pertains to methods, kits and compositions suitable for the detection, identification and/or quantitation of nucleic acids which are electrostatically immobilized to matrices using non-nucleotide probes which sequence specifically hybridize to one or more target sequences of the nucleic acid but do not otherwise substantially interact with the matrix. Once the nucleic acid is immobilized, the detectable non-nucleotide probe/target sequence complex, formed before or after the immobilization of the nucleic acid, can be detected, identified or quantitated under a wide range of assay conditions as a means to detect, identify or quantitate the target sequence in the sample. Because it is reversibly bound, the non-nucleotide probe/target sequence can optionally be removed from the matrix for detecting, identifying or quantitating the target sequence in the sample. Because the non-nucleotide probe/target sequence is protected against degradation, it is another advantage of this invention that the sample can be treated with enzymes which degrade sample components, either before or after the nucleic acid is bound to the matrix, in order to 'clean up' the sample (e.g. a complex biological sample such as a cell lysate) and thereby improve the detection, identification or quantitation of the target sequence in the sample. The methods, kits and compositions of this invention are therefore particularly well suited for the analysis, and particularly single point mutation analysis, in a particle assay, in an array assay, in a nuclease digestion/protection assay and/or in a line assay format. When utilized in combination with non-nucleotide 'Beacon' probes, the invention is particularly well suited for use in a self-indicating assay format.
    • 87. 发明公开
    • IMPROVED HYBRIDISATION ASSAY IN WHICH EXCESS PROBE IS DESTROYED
    • 改进的杂交试验,其中过探测降级
    • EP1121463A1
    • 2001-08-08
    • EP99949210.1
    • 1999-10-12
    • Zetatronics Limited
    • HARBRON, Stuart
    • C12Q1/68
    • C12Q1/6832C12Q1/6804C12Q2563/125C12Q2531/113C12Q2527/119C12Q2565/531C12Q2525/107C12Q2521/307C12Q2522/101
    • The present invention provides a method for detecting a single-stranded target nucleic acid comprising the steps of: a) forming a hybrid between a target nucleic acid and a nucleic acid probe, said nucleic acid probe labelled with an enzyme reagent which hydrolyses single-stranded nucleic acid but is substantially without effect on double-stranded nucleic acid, said hybrid formed under conditions of pH which are outside the activity range of said enzyme reagent; b) adjusting said pH to a value within the activity range of said enzyme reagent, whereby said enzyme reagent substantially hydrolyses any single-stranded nucleic acid present; and c) contacting said hybrid with a detection reagent to detect the hybrid, characterised by, prior to step (c), bringing the nucleic acid probe or hybrid into contact with a solid support to attach it thereto or bringing the nucleic acid probe or hybrid into contact with a capture reagent, optionally linked to a solid support, to capture the nucleic acid probe or hybrid; and washing the capture reagent or solid support on which the hybrid is immobilised with a washing fluid while the capture reagent or solid support is contained within a vessel that is adapted to retain the capture reagent or solid support but not to retain fluid in which the capture reagent or solid support is dispersed, whereby material which has not been captured by the capture reagent or otherwise immobilised on a solid support is eluted from the vessel.