会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 3. 发明授权
    • Detection of differences in nucleic acids
    • US6013439A
    • 2000-01-11
    • US771623
    • 1996-12-20
    • Alla LishanskiNurith KurnEdwin F. Ullman
    • Alla LishanskiNurith KurnEdwin F. Ullman
    • C12Q1/68C07H21/00
    • C12Q1/6823C12Q1/6813C12Q1/6818C12Q1/6827Y10S435/808
    • A method is disclosed for detecting the presence of a difference between two related nucleic acid sequences. In the method a complex is formed comprising both strands of each sequence. Each member of at least one pair of non-complementary strands within the complex have labels. The association of the labels as part of the complex is determined as an indication of the presence of a difference between the two related sequences. The complex generally comprises a Holliday junction. In one aspect a medium suspected of containing said two related nucleic acid sequences is treated to provide partial duplexes having non-complementary tailed portions at one end. The double stranded portions of the partial duplexes are identical except for said difference. One of the strands of one of the partial duplexes is complementary to one of the strands of the other of the partial duplexes and the other of the strands of one of the partial duplexes is complementary to the other of the strands of the other of the partial duplexes. The medium is subjected to conditions that permit the binding of the tailed portions of the partial duplexes to each other. If there is a difference in the related nucleic acid sequences, a stable complex is formed comprising a Holliday junction. If no difference exists, the complex dissociates into duplexes. A determination is made whether the stable complex is formed, the presence thereof indicating the presence of the related nucleic acid sequences. The method has application in detecting the presence of a mutation in a target sequence or in detecting the target sequence itself.
    • 7. 发明授权
    • Homogeneous assay for specific polynucleotides
    • 特异性多核苷酸的均相测定
    • US4868104A
    • 1989-09-19
    • US773386
    • 1985-09-06
    • Nurith KurnChander BahlEdwin F. Ullman
    • Nurith KurnChander BahlEdwin F. Ullman
    • G01N33/53C12Q1/00C12Q1/68C12Q1/70G01N33/50G01N33/58G01N33/60
    • C12Q1/705C12Q1/6813C12Q1/6832Y10S435/81Y10S436/808
    • A method for determining the presence of a polynucleotide analyte in a sample suspected of containing the analyte is disclosed. The method comprises combining in an assay medium the sample and first and second polynucleotide reagents complementary to the analyte. Each of the first and second reagents hybridize with a different region of the analyte. The first reagent contains means for rendering the first reagent non-covalently polymerizable. The second reagent contains means for rendering the second reagent detectable. The sample and the first and second reagents are combined in the assay medium under conditions for polymerizing the first reagent wherein the second reagent becomes bound to the polymerized first reagent only when the analyte is present in the sample. A determination is then made as to whether the second reagent has become bound to the polymerized first reagent. The method has broad application for determining the presence of a polynucleotide analyte such as DNA, RNA, the genomes of viruses, bacteria, molds, fungi, and fragments thereof, and the like. Preferred means for rendering the first reagent non-covalently polymerizable includes a repeating oligonucleotide sequence covalently bound to the first reagent.
    • 公开了一种用于确定怀疑含有分析物的样品中多核苷酸分析物的存在的方法。 该方法包括在测定培养基中混合样品和与分析物互补的第一和第二多核苷酸试剂。 第一和第二试剂中的每一个与分析物的不同区域杂交。 第一试剂含有使第一试剂非共价可聚合的方法。 第二试剂含有用于使第二试剂可检测的装置。 样品和第一试剂和第二试剂在测定培养基中合并的条件下,只有当分析物存在于样品中时,第一试剂的第一试剂的聚合条件是第二试剂与聚合的第一试剂结合。 然后确定第二试剂是否已经与聚合的第一试剂结合。 该方法广泛用于确定多核苷酸分析物(例如DNA,RNA,病毒,细菌,霉菌,真菌及其片段的基因组)的存在等。 使第一试剂非共价可聚合的优选方法包括与第一试剂共价结合的重复寡核苷酸序列。
    • 8. 发明授权
    • Detection of differences in nucleic acids
    • US06555317B2
    • 2003-04-29
    • US09732279
    • 2000-12-07
    • Alla LishanskiNurith KurnEdwin F. Ullman
    • Alla LishanskiNurith KurnEdwin F. Ullman
    • C12Q168
    • C12Q1/6823C12Q1/6813C12Q1/6818C12Q1/6827Y10S435/808
    • A method is disclosed for detecting the presence of a difference between two related nucleic acid sequences. In the method a complex is formed comprising both strands of each sequence. Each member of at least one pair of non-complementary strands within the complex have labels. The association of the labels as part of the complex is determined as an indication of the presence of a difference between the two related sequences. The complex generally comprises a Holliday junction. In one aspect a medium suspected of containing said two related nucleic acid sequences is treated to provide partial duplexes having non-complementary tailed portions at one end. The double stranded portions of the partial duplexes are identical except for said difference. One of the strands of one of the partial duplexes is complementary to one of the strands of the other of the partial duplexes and the other of the strands of one of the partial duplexes is complementary to the other of the strands of the other of the partial duplexes. The medium is subjected to conditions that permit the binding of the tailed portions of the partial duplexes to each other. If there is a difference in the related nucleic acid sequences, a stable complex is formed comprising a Holliday junction. If no difference exists, the complex dissociates into duplexes. A determination is made whether the stable complex is formed, the presence thereof indicating the presence of the related nucleic acid sequences. The method has application in detecting the presence of a mutation in a target sequence or in detecting the target sequence itself.