Antibiotics based upon bacteriophage lysis proteins
    3.
    发明申请
    Antibiotics based upon bacteriophage lysis proteins 审中-公开
    基于噬菌体裂解蛋白的抗生素

    公开(公告)号:US20050191628A1

    公开(公告)日:2005-09-01

    申请号:US10625357

    申请日:2003-07-23

    摘要: This invention relates to polypeptide antibiotics, including materials and methods related thereto, based upon the observation that bacteriophage elaborate proteins that cause host cell lysis by interfering with specific steps in cell wall biosynthesis. Examples of antibiotics based upon this invention include the bacteriophage φX174 gene E product and structurally and/or functionally related polypeptide and small protein antibiotics that interact with MraY, and the bacteriophage Qβ gene A2 product and structurally and/or functionally related polypeptide and small protein antibiotics that interact with MurA. This leads to the general model for obtaining new polypeptide antibiotics by using genetic approaches based on these findings to find polypeptide sequences which cause bacterial cell lysis.

    摘要翻译: 本发明涉及多肽抗生素,包括与其有关的材料和方法,基于观察到噬菌体通过干扰细胞壁生物合成中的特定步骤而引起宿主细胞裂解的精细蛋白质。 基于本发明的抗生素的实例包括噬菌体phiX174基因E产物以及与MraY相互作用的结构和/或功能相关多肽和小蛋白抗生素,以及噬菌体Qbeta基因A 2 N 2产物,结构和/ 或与MurA相互作用的功能相关多肽和小蛋白抗生素。 这导致通过使用基于这些发现的遗传方法获得新多肽抗生素的一般模型来发现导致细菌细胞裂解的多肽序列。