Detection of mycobacteria by multiplex nucleic acid amplification
    1.
    发明授权
    Detection of mycobacteria by multiplex nucleic acid amplification 失效
    通过多重核酸扩增检测分枝杆菌

    公开(公告)号:US5811269A

    公开(公告)日:1998-09-22

    申请号:US640378

    申请日:1996-04-30

    CPC分类号: C12Q1/689 C12Q2600/16

    摘要: Primers and methods for adapter-mediated multiplex amplification of the IS6110 insertion element of the Mycobacterium tuberculosis (M.tb) complex and a 16S rDNA target common to essentially all mycobacteria are described. In certain embodiments, the primers are optimized for efficient multiplex amplification in thermophilic SDA. The multiplex Strand Displacement Amplification methods of the invention are capable, in a single amplification reaction, of simultaneously identifying M. tuberculosis and providing a screen for substantially all of the clinically relevant species of mycobacteria. Also disclosed are internal control sequences designed for coamplification with the two targets, allowing assessment of amplification efficiency and/or quantitation of the targets.

    摘要翻译: 描述了针对结核分枝杆菌(M.tb)复合物的IS6110插入元件和基本上所有分枝杆菌共同的16S rDNA靶的衔接子介导的多重扩增的引物和方法。 在某些实施方案中,针对嗜热SDA中的有效多重扩增优化引物。 本发明的多重链位移扩增方法能够在单个扩增反应中同时鉴定结核分枝杆菌并提供基本上所有临床相关分枝杆菌物种的筛选。 还公开了设计用于与两个靶标共扩增的内部控制序列,允许评估靶标的扩增效率和/或定量。

    Methods, apparatus and computer program products for determining
quantities of nucleic acid sequences in samples using standard curves
and amplification ratio estimates
    4.
    发明授权
    Methods, apparatus and computer program products for determining quantities of nucleic acid sequences in samples using standard curves and amplification ratio estimates 失效
    用于使用标准曲线和扩增率估计来确定样品中核酸序列数量的方法,装置和计算机程序产品

    公开(公告)号:US6066458A

    公开(公告)日:2000-05-23

    申请号:US80589

    申请日:1998-05-18

    IPC分类号: C12N15/00 C12Q1/68

    CPC分类号: C12Q1/6851

    摘要: Methods for determining quantities of nucleic acid sequences in samples undergoing amplification utilize amplification ratio estimates (R*) in operations to accurately perform absolute quantitation even when amplification factors for the target and control sequences undergoing amplification are different, time dependent or vary as a function of starting concentrations of nucleic acid sequences. These operations also take into account conversion efficiencies associated with the conversion of probes upon generation of target or control amplicons, but do not require the explicit calculation of such efficiencies. The operations also recognize that a preferred R* should be determined based on a preferred statistical criterion to improve quantitation. In addition, the use of standard samples having known starting concentrations of target and control sequences therein may enable accurate absolute quantitation without the explicit calculation of amplification ratio estimates.

    摘要翻译: 用于确定正在进行扩增的样品中核酸序列数量的方法利用操作中的扩增比率估计(R *)来准确地执行绝对定量,即使目标和经历放大的控制序列的放大因子不同,时间依赖或随着 核酸序列的起始浓度。 这些操作还考虑了在靶或扩增子产生时与探针转化相关的转化效率,但不需要明确计算这种效率。 操作还认识到,优选的R *应基于优选的统计标准来确定,以改进定量。 此外,使用具有已知起始浓度的目标和控制序列的标准样品可以使得能够进行精确的绝对定量,而无需显式计算扩增率估计值。

    Detection of nucleic acids by fluorescence quenching

    公开(公告)号:US5928869A

    公开(公告)日:1999-07-27

    申请号:US865675

    申请日:1997-05-30

    摘要: A detector oligonucleotide having a sequence which forms an intramolecularly base-paired secondary structure is described for use in detecting nucleic acid target sequences and target sequence amplification. The detector oligonucleotide is further modified by linkage to two dyes which form a donor/acceptor dye pair. The two dyes are positioned on the detector oligonucleotide such that they are in close spatial proximity in the base-paired, folded secondary structure, thereby causing quenching of donor fluorescence. The detector oligonucleotide may optionally further comprise a restriction endonuclease recognition site (RERS) which remains partially or entirely single-stranded in the base-paired secondary structure. The RERS is flanked by the two dyes. In the presence of target, the base-paired secondary structure is unfolded or linearized, increasing the distance between the donor and acceptor dyes and causing a change in fluorescence of the donor and/or the acceptor. If an RERS is present, it is rendered double-stranded in the presence of target, allowing cleavage or nicking by a restriction endonuclease and separation of the two dyes onto separate nucleic acid fragments. This may further contribute to the magnitude of the change in fluorescence.

    Detection of mycobacteria by multiplex strand displacement nucleic acid
amplification
    7.
    发明授权
    Detection of mycobacteria by multiplex strand displacement nucleic acid amplification 失效
    通过多重链置换核酸扩增检测分枝杆菌

    公开(公告)号:US5561044A

    公开(公告)日:1996-10-01

    申请号:US398305

    申请日:1995-03-03

    摘要: Primers and methods for adapter-mediated multiplex amplification of the IS6110 insertion element of Mycobacterium tuberculosis (M.tb) and the 16S ribosomal gene of Mycobacterium tuberculosis, useful for simultaneously detecting and/or identifying species of the M. tuberculosis complex and other clinically relevant Mycobacterium species. Multiplex Strand Displacement Amplification (SDA) is used in a single amplification reaction which is capable of simultaneously identifying M. tuberculosis and providing a screen for substantially all of the clinically relevant species of Mycobacteria. Also disclosed are methods for adapter-mediated multiplex amplification of multiple target sequences and a single internal control sequence for determination of sample efficacy or quantitation of the targets. In a preferred embodiment, an internal control sequence is included in the amplification reaction and coamplified with the IS6110 and 16S target sequences as an indication of sample amplification activity or to quantitate the initial amount of target sequences in the sample.

    摘要翻译: 针对结核分枝杆菌(M.tb)的IS6110插入元件和结核分枝杆菌的16S核糖体基因的适配器介导的多重扩增的引物和方法,可用于同时检测和/或鉴定结核分枝杆菌复合物和其他临床相关的物种 分枝杆菌种。 多重链位移扩增(SDA)用于能够同时鉴定结核分枝杆菌并为基本上所有临床相关分枝杆菌物种提供筛选的单一扩增反应。 还公开了用于多重靶序列的衔接子介导的多重扩增的方法和用于确定靶的样品功效或定量的单个内部控制序列的方法。 在优选的实施方案中,内部对照序列包括在扩增反应中并与IS6110和16S靶序列共扩增,作为样品扩增活性的指示或定量样品中靶序列的初始量。

    Detection of mycobacteria by multiplex nucleic acid amplification
    8.
    发明授权
    Detection of mycobacteria by multiplex nucleic acid amplification 失效
    通过多重核酸扩增检测分枝杆菌

    公开(公告)号:US5470723A

    公开(公告)日:1995-11-28

    申请号:US111076

    申请日:1993-08-24

    摘要: Primers and methods for adapter-mediated multiplex amplification of the IS6110 insertion element of Mycobacterium tuberculosis (M.tb) and the 16S ribosomal gene of Mycobacterium tuberculosis, useful for simultaneously detecting and/or identifying species of the M. tuberculosis complex and other clinically relevant Mycobacterium species. Multiplex Strand Displacement Amplification (SDA) is used in a single amplification reaction which is capable of simultaneously identifying M. tuberculosis and providing a screen for substantially all of the clinically relevant species of Mycobacteria. Also disclosed are methods for adapter-mediated multiplex amplification of multiple target sequences and a single internal control sequence for determination of sample efficacy or quantitation of the targets. In a preferred embodiment, an internal control sequence is included in the amplification reaction and coamplified with the IS6110 ant 16S target sequences as an indication of sample amplification activity or to quantitate the initial amount of target sequences in the sample.

    摘要翻译: 针对结核分枝杆菌(M.tb)的IS6110插入元件和结核分枝杆菌的16S核糖体基因的适配器介导的多重扩增的引物和方法,可用于同时检测和/或鉴定结核分枝杆菌复合物和其他临床相关的物种 分枝杆菌种。 多重链位移扩增(SDA)用于能够同时鉴定结核分枝杆菌并为基本上所有临床相关分枝杆菌物种提供筛选的单一扩增反应。 还公开了用于多重靶序列的衔接子介导的多重扩增的方法和用于确定靶的样品功效或定量的单个内部控制序列的方法。 在优选的实施方案中,扩增反应中包含内部控制序列并与IS6110蚂蚁16S靶序列共扩增,作为样品扩增活性的指示或定量样品中靶序列的初始量。

    Universal probes and methods for detection of nucleic acids
    9.
    发明授权
    Universal probes and methods for detection of nucleic acids 失效
    用于检测核酸的通用探针和方法

    公开(公告)号:US06379888B1

    公开(公告)日:2002-04-30

    申请号:US09406074

    申请日:1999-09-27

    IPC分类号: C12Q168

    摘要: Signal primers are employed for detection of nucleic acid target sequences by fluorescence quenching mechanisms. The signal primer comprises a first and a second oligonucleotide and is partially single-stranded and partially double-stranded. In the presence of target, the second oligonucleotide of the signal primer is displaced from the first and a conformational change in a reporter probe occurs which changes the distance between the members of a donor/quencher dye pair linked to the reporter probe. The change in proximity between the dyes causes an increase or a decrease in fluorescence quenching, which is detected as an indication of the presence of the target sequence.

    摘要翻译: 信号引物用于通过荧光猝灭机制检测核酸靶序列。 信号引物包含第一和第二寡核苷酸并且是部分单链和部分双链的。 在靶的存在下,信号引物的第二寡核苷酸从第一个位点移位,并且发生报告物探针中的构象变化,其改变与报道探针连接的供体/猝灭剂染料对的成员之间的距离。 染料之间接近度的变化导致荧光淬灭的增加或减少,其被检测为靶序列存在的指示。

    Multiplex nucleic acid amplification
    10.
    发明授权
    Multiplex nucleic acid amplification 失效
    多重核酸扩增

    公开(公告)号:US5736365A

    公开(公告)日:1998-04-07

    申请号:US705225

    申请日:1996-08-29

    摘要: Primers and methods for adapter-mediated multiplex amplification of the IS6110 insertion element of Mycobacterium tuberculosis (M.tb) and the 16S ribosomal gene of Mycobacterium tuberculosis, useful for simultaneously detecting and/or identifying species of the M. tuberculosis complex and other clinically relevant Mycobacterium species. Multiplex Strand Displacement Amplification (SDA) is used in a single amplification reaction which is capable of simultaneously identifying M. tuberculosis and providing a screen for substantially all of the clinically relevant species of Mycobacteria. Also disclosed are methods for adapter-mediated multiplex amplification of multiple target sequences and a single internal control sequence for determination of sample efficacy or quantitation of the targets. In a preferred embodiment, an internal control sequence is included in the amplification reaction and coamplified with the IS6110 and 16S target sequences as an indication of sample amplification activity or to quantitate the initial amount of target sequences in the sample.

    摘要翻译: 针对结核分枝杆菌(M.tb)的IS6110插入元件和结核分枝杆菌的16S核糖体基因的适配器介导的多重扩增的引物和方法,可用于同时检测和/或鉴定结核分枝杆菌复合物和其他临床相关的物种 分枝杆菌种。 多重链位移扩增(SDA)用于能够同时鉴定结核分枝杆菌并为基本上所有临床相关分枝杆菌物种提供筛选的单一扩增反应。 还公开了用于多重靶序列的衔接子介导的多重扩增的方法和用于确定靶的样品功效或定量的单个内部控制序列的方法。 在优选的实施方案中,内部对照序列包括在扩增反应中并与IS6110和16S靶序列共扩增,作为样品扩增活性的指示或定量样品中靶序列的初始量。