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    • 9. 发明授权
    • Sequence-specific detection of methylation in biomolecules
    • 生物分子中甲基化的序列特异性检测
    • US08129106B2
    • 2012-03-06
    • US11570672
    • 2005-06-14
    • Elmar WeinholdThomas MeierHartmut DüfelChristine Markert-HahnRainer Schmuck
    • Elmar WeinholdThomas MeierHartmut DüfelChristine Markert-HahnRainer Schmuck
    • C12Q1/68C12Q1/70G01N33/53C07H15/00C07H21/04C07H19/04
    • C07H19/16C12Q1/6827C12Q2537/164C12Q2522/101C12Q2521/125
    • A method for detecting sequence specific methylation in a biomolecule, comprising: (a) contacting the biomolecule with an S-adenosyl-L-methionine-dependent methyltransferase in the presence of a detectable cofactor of said methyltransferase; and (b) detecting whether the recognition sequence of said methyltransferase has been modified with the cofactor or a derivative thereof, wherein modification of the recognition sequence of said methyltransferase is indicative of an absence of methylation at said recognition sequence. Also disclosed is a cofactor specific for S-adenosyl-L-methionine-dependent methyltransferases, wherein said cofactor is an N-adenosylaziridine derivative with a reporter group attached to the 6 or 7 position of the adenine ring or attached to the aziridine ring. A complex of the cofactor and a methyltransferase a composition comprising the cofactor or the complex and the use of the cofactor or the complex for detecting sequence-specific methylation in DNA molecules are also disclosed.
    • 一种用于检测生物分子中序列特异性甲基化的方法,包括:(a)在所述甲基转移酶的可检测辅因子的存在下,使所述生物分子与S-腺苷-L-甲硫氨酸依赖性甲基转移酶接触; 和(b)检测所述甲基转移酶的识别序列是否已经用辅因子或其衍生物修饰,其中所述甲基转移酶的识别序列的修饰指示在所述识别序列处不存在甲基化。 还公开了对S-腺苷-L-甲硫氨酸依赖性甲基转移酶特异性的辅因子,其中所述辅因子是N-腺苷氮丙啶衍生物,其报告基团连接到腺嘌呤环的6或7位或连接到氮丙啶环上。 还公开了辅因子和甲基转移酶的复合物,其包含辅因子或复合物以及辅因子或复合物用于检测DNA分子中的序列特异性甲基化的组合物。
    • 10. 发明申请
    • SEQUENCE-SPECIFIC DETECTION OF METHYLATION IN BIOMOLECULES
    • 生物分子中甲基化的序列特异性检测
    • US20110165564A1
    • 2011-07-07
    • US11570672
    • 2005-06-14
    • Elmar WeinholdThomas MeierHartmut DüfelChristine Markert-HahnRainer Schmuck
    • Elmar WeinholdThomas MeierHartmut DüfelChristine Markert-HahnRainer Schmuck
    • C12Q1/68C07H19/22C07H21/04
    • C07H19/16C12Q1/6827C12Q2537/164C12Q2522/101C12Q2521/125
    • A method for detecting sequence specific methylation in a biomolecule, comprising: (a) contacting the biomolecule with an S-adenosyl-L-methionine-dependent methyltransferase in the presence of a detectable cofactor of said methyltransferase; and (b) detecting whether the recognition sequence of said methyltransferase has been modified with the cofactor or a derivative thereof, wherein modification of the recognition sequence of said methyltransferase is indicative of an absence of methylation at said recognition sequence. Also disclosed is a cofactor specific for S-adenosyl-L-methionine-dependent methyltransferases, wherein said cofactor is an N-adenosylaziridine derivative with a reporter group attached to the 6 or 7 position of the adenine ring or attached to the aziridine ring. A complex of the cofactor and a methyltransferase a composition comprising the cofactor or the complex and the use of the cofactor or the complex for detecting sequence-specific methylation in DNA molecules are also disclosed.
    • 一种用于检测生物分子中序列特异性甲基化的方法,包括:(a)在所述甲基转移酶的可检测辅因子的存在下,使所述生物分子与S-腺苷-L-甲硫氨酸依赖性甲基转移酶接触; 和(b)检测所述甲基转移酶的识别序列是否已经用辅因子或其衍生物修饰,其中所述甲基转移酶的识别序列的修饰指示在所述识别序列处不存在甲基化。 还公开了对S-腺苷-L-甲硫氨酸依赖性甲基转移酶特异性的辅因子,其中所述辅因子是N-腺苷氮丙啶衍生物,其报告基团连接到腺嘌呤环的6或7位或连接到氮丙啶环上。 还公开了辅因子和甲基转移酶的复合物,其包含辅因子或复合物以及辅因子或复合物用于检测DNA分子中的序列特异性甲基化的组合物。