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    • 58. 发明公开
    • Rapid FRET based anthrax diagnosis
    • Schnelle炭疽诊断FRET基础
    • EP2189536A1
    • 2010-05-26
    • EP08169548.8
    • 2008-11-20
    • Nederlandse Organisatie voor toegepast-natuurwetenschappelijk onderzoek TNO
    • Bikker, Floris JacobKaman-van Zanten, Wendy Esmeralda
    • C12Q1/04C07K7/06C07K5/06C12Q1/37C07K5/08C07K5/10
    • C12Q1/04C07K5/0207C07K5/06C07K5/06043C07K5/08C07K5/1013C07K7/06C12Q1/37G01N2333/32
    • The invention comprises a substrate for detection of micro-organisms, wherein said substrate comprises a set of molecular markers linked to a di, tri- or tetrapeptide consisting of amino acids X1 and X2, X1, X2 and X3 or X1, X2, X3 and X4, respectively, in which one of them, for example X1 is a D-amino acid and the others, for example X2, X3 and X4 may be any D- or L-amino acid. Said substrate preferably is used for the detection of Bacillus anthracis and preferably a set of molecular markers linked to a dipeptide or tripeptide consisting of two amino acids X1 and X2 or three amino acids X1, X2 and X3. respectively, in which either
      - one of X1, X2 and X3 is DLeu and one of the others is any L- or D-amino acid, preferably Leu, or
      - one of X1, X2 and X3 is a D-amino acid and one of the others is preferably Leu.
      The invention further comprises methods for detection of micro-organisms, specifically Bacillus anthracis , with the substrates of the invention.
      The preferred substrates are, for example,
      Ac-NH-Cys(S-Ac)-Leu-(D)Leu-Cys(S-Ac)-OH
      and
      FITC-Ahx-(D)Leu-Leu-Lys-DABCYL.
    • 本发明包括用于检测微生物的底物,其中所述底物包含一组连接于由氨基酸X1和X2,X1,X2和X3或X1,X2,X3组成的二肽,三肽或四肽的分子标记, X4,其中一个,例如X1是D-氨基酸,而其它的,例如X2,X3和X4可以是任何D-或L-氨基酸。 所述底物优选用于检测炭疽芽孢杆菌,优选用于与由两个氨基酸X1和X2或三个氨基酸X1,X2和X3组成的二肽或三肽连接的一组分子标记。 其中X1,X2和X3之一是DLeu,其中之一是任何L-或D-氨基酸,优选Leu,或 - X1,X2和X3之一是D-氨基酸,一个 其他的优选为Leu。 本发明还包括用本发明的底物检测微生物,特别是炭疽芽孢杆菌的方法。 优选的底物是例如Ac-NH-Cys(S-Ac)-Leu-(D)Leu-Cys(S-Ac)-OH和FITC-Ahx-(D)Leu-Leu-Lys-DABCYL。