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    • 5. 发明授权
    • Gene disruption methodologies for drug target discovery
    • 药物靶点发现的基因破坏方法
    • US06783985B1
    • 2004-08-31
    • US09792024
    • 2001-02-20
    • Terry RoemerBo JiangCharles BooneHoward Bussey
    • Terry RoemerBo JiangCharles BooneHoward Bussey
    • C12N1501
    • C12R1/645A61K39/00C07K14/37C07K14/40C07K2319/00C12N15/1034C12N15/65C12N15/80C12N15/90C12R1/725
    • The present invention provides methods and compositions that enable the experimental determination as to whether any gene in the genome of a diploid pathogenic organism is essential, and whether it is required for virulence or pathogenicity. The methods involve the construction of genetic mutants in which one allele of a specific gene is inactivated while the other allele of the gene is placed under conditional expression. The identification of essential genes and those genes critical to the development of virulent infections, provides a basis for the development of screens for new drugs against such pathogenic organisms. The present invention further provides Candida albicans genes that are demonstrated to be essential and are potential targets for drug screening. The nucleotide sequence of the target genes can be used for various drug discovery purposes, such as expression of the recombinant protein, hybridization assay and construction of nucleic acid arrays. The uses of proteins encoded by the essential genes, and genetically engineered cells comprising modified alleles of essential genes in various screening methods are also encompassed by the invention.
    • 本发明提供了能够对二倍体致病生物体的基因组中的任何基因是否必需的实验测定以及是否需要毒力或致病性的方法和组合物。 该方法包括构建遗传突变体,其中特定基因的一个等位基因被灭活而基因的其他等位基因置于条件表达下。 识别必需基因和对致病性感染发展至关重要的那些基因,为开发针对这种致病生物的新药筛选提供了基础。 本发明进一步提供了被证实是必需的白念珠菌基因,并且是药物筛选的潜在靶标。 靶基因的核苷酸序列可以用于各种药物发现目的,例如重组蛋白的表达,杂交测定和核酸阵列的构建。 在各种筛选方法中,由必需基因编码的蛋白质的使用以及包含必需基因的修饰的等位基因的遗传工程改造的细胞也包括在本发明中。
    • 6. 发明授权
    • Dominant selectable marker for gene transformation and disruption in yeasts
    • 用于酵母基因转化和破坏的主导选择标记
    • US06562595B2
    • 2003-05-13
    • US09785669
    • 2001-02-16
    • Terry RoemerHoward BusseyJohn Davison
    • Terry RoemerHoward BusseyJohn Davison
    • C12N1500
    • C12N15/81A61K38/00C07K14/40C12N9/1029
    • The present invention provides a novel dominant selectable marker system in yeast that is based on an aminoglycoside, nourseothricin (NST). This compound possesses a powerful antifungal activity against Candida albicans and S. cerevisiae. The invention provides a cognate drug resistance marker for use in gene transformation and disruption experimentation in Candida albicans and Saccharomyces cerevisiae. In particular, the invention presents: 1) direct utility for gene manipulations in both clinically and experimentally relevant strains regardless of genotype and without affecting growth rate, or hyphal formation; and 2) applicability to antifungal drug discovery, including target validation and various forms of drug screening assays.
    • 本发明提供了一种基于氨基糖苷类(NST)的酵母中的新型显性选择标记系统。 该化合物对白色念珠菌和酿酒酵母具有强大的抗真菌活性。 本发明提供了用于白色念珠菌和酿酒酵母的基因转化和破坏实验的同源药物抗性标记。 特别地,本发明提出:1)直接用于临床和实验相关菌株中的基因操作,而不管基因型如何,而不影响生长速率或菌丝形成; 和2)适用于抗真菌药物发现,包括目标验证和各种形式的药物筛选测定。
    • 8. 发明申请
    • Gene disruption methodologies for drug target discovery
    • 药物靶点发现的基因破坏方法
    • US20050079619A1
    • 2005-04-14
    • US10882104
    • 2004-06-29
    • Terry RoemerBo JiangCharles BooneHoward Bussey
    • Terry RoemerBo JiangCharles BooneHoward Bussey
    • A61K39/00C07K14/37C07K14/40C12N15/10C12N15/65C12N15/80C12N15/90C12N1/18C12N15/74
    • C12R1/645A61K39/00C07K14/37C07K14/40C07K2319/00C12N15/1034C12N15/65C12N15/80C12N15/90C12R1/725
    • The present invention provides methods and compositions that enable the experimental determination as to whether any gene in the genome of a diploid pathogenic organism is essential, and whether it is required for virulence or pathogenicity. The methods involve the construction of genetic mutants in which one allele of a specific gene is inactivated while the other allele of the gene is placed under conditional expression. The identification of essential genes and those genes critical to the development of virulent infections, provides a basis for the development of screens for new drugs against such pathogenic organisms. The present invention further provides Candida albicans genes that are demonstrated to be essential and are potential targets for drug screening. The nucleotide sequence of the target genes can be used for various drug discovery purposes, such as expression of the recombinant protein, hybridization assay and construction of nucleic acid arrays. The uses of proteins encoded by the essential genes, and genetically engineered cells comprising modified alleles of essential genes in various screening methods are also encompassed by the invention.
    • 本发明提供了能够对二倍体致病生物体的基因组中的任何基因是否必需的实验测定以及是否需要毒力或致病性的方法和组合物。 该方法包括构建遗传突变体,其中特定基因的一个等位基因被灭活而基因的其他等位基因置于条件表达下。 识别必需基因和对致病性感染发展至关重要的那些基因,为开发针对这种致病生物的新药筛选提供了基础。 本发明进一步提供了被证实是必需的白念珠菌基因,并且是药物筛选的潜在靶标。 靶基因的核苷酸序列可以用于各种药物发现目的,例如重组蛋白的表达,杂交测定和核酸阵列的构建。 在各种筛选方法中,由必需基因编码的蛋白质的使用以及包含必需基因的修饰的等位基因的遗传工程改造的细胞也包括在本发明中。