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    • 7. 发明申请
    • UNMARKED DELETION MUTANTS OF MYCOBACTERIA AND METHODS OF USING SAME
    • MYCOBACTERIA的无标记删除突变体及其使用方法
    • WO0103730A9
    • 2002-07-25
    • PCT/US0018453
    • 2000-07-06
    • EINSTEIN COLL MED
    • JACOBS WILLIAM R JRPAVELKA MARTIN S JR
    • A61K39/00A61P31/04C12N1/21C12N9/02C12N15/74A61K39/02A61K39/04C12N1/20C12N15/09C12Q1/68G01N33/569
    • C12N9/0004A61K39/00C12N15/74C12R1/32
    • Disclosed is a recombinant slow-growing mycobacterium comprising at least one mycobacterial gene containing an unmarked mutation, wherein an "unmarked mutation" is a mutated nucleotide sequence introduced into a mycobacterium where the introduced mutated nucleotide sequence does not contain a selectable marker, such as a gene conferring antibiotic resistance to the recombinant mycobacterium incorporating the mutated nucleotide sequence. Also disclosed is a method for preparing a recombinant slow-growing mycobacterium comprising at least one mycobacterial gene containing an unmarked mutation, as well as a vaccine comprising a recombinant slow-growing mycobacterium having at least one mycobacterial gene containing an unmarked mutation dispersed in a physiologically acceptable carrier. Further disclosed is a method of treating or preventing tuberculosis in a subject comprising administering the vaccine of the present invention in an amount effective to treat or prevent tuberculosis in the subject.
    • 公开了包含至少一种含有未标记突变的分枝杆菌基因的重组慢生长分枝杆菌,其中“未标记突变”是引入分枝杆菌的突变核苷酸序列,其中所引入的突变核苷酸序列不含可选择标记,例如 基因对赋予突变核苷酸序列的重组分枝杆菌赋予抗生素抗性。 还公开了一种制备重组慢生长分枝杆菌的方法,其包含至少一种含有未标记突变的分枝杆菌基因,以及包含重组慢生长分枝杆菌的疫苗,其具有至少一种分散在生理学上的未标记突变的分枝杆菌基因 可接受的载体 进一步公开的是治疗或预防受试者结核病的方法,包括以有效治疗或预防受试者结核病的量施用本发明的疫苗。
    • 8. 发明申请
    • ONE-STEP ALLELIC EXCHANGE IN MYCOBACTERIA WITH CONDITIONAL TRANSDUCING PHAGE
    • 具有条件转移噬菌体的MYCOBACTERIA中的一步法律交换
    • WO0104267A9
    • 2002-08-01
    • PCT/US0040311
    • 2000-07-06
    • EINSTEIN COLL MED
    • JACOBS WILLIAM R JRBARDAROV STOYAN S
    • C12N1/21C12N15/74C12N15/00C12N15/63
    • C12N15/74
    • The present invention provides a method for high frequency of allelic exchange in the slow-growing mycobacteria using in vitro generated specialized transducing mycobacteriophages, as well as the recombinant slow-growing mycobacteria generated using the disclosed method. A transducing mycobacteriophage of the present invention comprises a conditional mycobacteriophage containing an E . coli bacteriophage lambda cosmid inserted into a non-essential region of the mycobacteriophage, said cosmid containing a mutated DNA substrate which is homologous to a wildtype nucleic acid sequence of a slow-growing mycobacterium. When slow-growing mycobacteria infected with the conditional transducing phage are cultured under conditions wherein the conditional transducing phage does not replicate, the mutated DNA substrate is incorporated into the chromosomal DNA of the slow-growing mycobacteria by homologous recombination, thereby generating the recombinant slow-growing mycobacteria of the present invention. The disclosed method may be used to produce mycobacterial auxotrophs, including leucine and lysine auxotrophs.
    • 本发明提供了使用体外产生的专门转导分枝杆菌噬菌体的慢生长分枝杆菌以及使用所公开的方法产生的重组慢生长分枝杆菌进行高频等位基因交换的方法。 本发明的转导性分枝杆菌噬菌体包含含有E的条件性分枝杆菌噬菌体。 所述粘粒包含与缓慢生长的分枝杆菌的野生型核酸序列同源的突变的DNA底物,所述DNA底物与所述分枝杆菌的非必需区域插入。 当条件转导噬菌体感染的慢生长分枝杆菌在条件转导噬菌体不复制的条件下培养时,通过同源重组将突变的DNA底物并入慢生长的分枝杆菌的染色体DNA中,从而产生重组慢 - 生长本发明的分枝杆菌。 所公开的方法可用于产生分枝杆菌营养缺陷型营养缺陷型,包括亮氨酸和赖氨酸营养缺陷型。