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    • 6. 发明申请
    • NUCLEIC ACID ANALYSIS TECHNIQUES
    • 核酸分析技术
    • WO1997027317A1
    • 1997-07-31
    • PCT/US1997001603
    • 1997-01-22
    • AFFYMETRIX, INC.LOCKHART, David, J.CHEE, MarkGUNDERSON, KevinLAI, ChaoqiangWODICKA, LisaCRONIN, Maureen, T.LEE, DannyTRAN, Huu, M.MATSUZAKI, HajimeMcGALL, Glenn, H.BARONE, Anthony, D.
    • AFFYMETRIX, INC.
    • C12Q01/00
    • C12Q1/6809C07H19/052C07H19/12C07H21/00C12Q1/6816C12Q1/6837C12Q2600/156C40B40/00C12Q2565/501C12Q2521/501
    • The present invention provides a simplified method for identifying differences in nucleic acid abundances (e.g., expression levels) between two or more samples. The methods involve providing an array containing a large number (e.g. greater then 1,000) of arbitrarily selected different oligonucleotide probes where the sequence and location of each different probe is known. Nucleic acid samples (e.g. mRNA) from two or more samples are hybridized to the probe arrays and the pattern of hybridization is detected. Differences in the hybridization patterns between the samples indicates differences in expression of various genes between those samples. This invention also provides a method of end-labeling a nucleic acid. In one embodiment, the method involves providing a nucleic acid, providing a labeled oligonucleotide and then enzymatically ligating the oligonucleotide to the nucleic acid. Thus, for example, where the nucleic acid is an RNA, a labeled oligoribonucleotide can be ligated using an RNA ligase. In another embodiment, the end labeling can be accomplished by providing a nucleic acid, providing labeled nucleoside triphosphates, and attaching the nucleoside triphosphates to the nucleic acid using a terminal transferase.
    • 本发明提供用于鉴定两个或多个样品之间的核酸丰度差异(例如,表达水平)的简化方法。 该方法包括提供包含大量(例如大于1,000个)任意选择的不同寡核苷酸探针的阵列,其中每个不同探针的序列和位置是已知的。 来自两个或更多个样品的核酸样品(例如mRNA)与探针阵列杂交,并检测杂交模式。 样本之间的杂交模式的差异表明这些样品之间各种基因的表达差异。 本发明还提供了一种终止标记核酸的方法。 在一个实施方案中,该方法包括提供核酸,提供标记的寡核苷酸,然后将寡核苷酸酶连接到核酸上。 因此,例如,当核酸是RNA时,可以使用RNA连接酶连接标记的寡核糖核苷酸。 在另一个实施方案中,末端标记可以通过提供核酸,提供标记的核苷三磷酸和使用末端转移酶将核苷三磷酸与核酸连接来实现。
    • 8. 发明申请
    • NUCLEIC ACID LABELING METHODS
    • 核酸标记方法
    • WO2004007751A2
    • 2004-01-22
    • PCT/US0322035
    • 2003-07-14
    • AFFYMETRIX INCCOLE KYLE BTRUONG VIVIMCGALL GLENN HBARONE ANTHONY D
    • COLE KYLE BTRUONG VIVIMCGALL GLENN HBARONE ANTHONY D
    • C07H19/10C07H19/20C07H21/00C12Q1/68C12Q
    • C07H21/00C07H19/10C07H19/20C12Q1/6816C12Q2565/501C12Q2563/107C12Q2521/501
    • In one aspect of the invention, a method is provided for end-labeling RNA (total RNA, mRNA, cRNA or fragmented RNA). In one embodiment, T4 RNA ligase is used to attach a 3'-biotinylated AMP or CMP donor to an RNA acceptor molecule. In another embodiment, a pyrophosphate molecule 3'-AppN-3'-linker-biotin is used as donor molecule. In another aspect of the invention, a method is provided for analyzing a nucleic acid population on a nucleic acid microarray comprising providing a nucleic acid population or converting the nucleic acid population into nucleic acid fragments; ligating the nucleic acid population or fragments to a labeled nucleic acid molecule to form labeled nucleic acid population or fragments using a ligase; hybridizing the labeled nucleic acid population or fragments to an array of nucleic acid probes, and determining hybridization signals of the probes as an indication of levels of the nucleic acids in the nucleic acid population.
    • 在本发明的一个方面,提供了用于末端标记RNA(总RNA,mRNA,cRNA或片段化的RNA)的方法。 在一个实施方案中,T4 RNA连接酶用于将3'-生物素化的AMP或CMP供体附着至RNA受体分子。 在另一个实施方案中,使用焦磷酸分子3'-AppN-3'-连接体 - 生物素作为供体分子。 在本发明的另一方面,提供了用于分析核酸微阵列上的核酸群体的方法,其包括提供核酸群体或将核酸群体转换成核酸片段; 使用连接酶将核酸群或片段连接至标记的核酸分子以形成标记的核酸群或片段; 将标记的核酸群体或片段与核酸探针阵列杂交,并确定探针的杂交信号,作为核酸群体中核酸水平的指示。