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    • 4. 发明授权
    • Chimeric proteins for use in transport of a selected substance into cells
    • 用于将选定物质运送到细胞中的嵌合蛋白
    • US06262026B1
    • 2001-07-17
    • US09285310
    • 1999-04-02
    • Michael W. HeartleinJeffrey F. LemonttMichael F. Concino
    • Michael W. HeartleinJeffrey F. LemonttMichael F. Concino
    • C07K14705
    • C07K14/79A61K38/00C07K2319/00C07K2319/20C07K2319/74C12N15/62
    • Chimeric proteins which comprise a ligand-binding domain of a first receptor and a carrier domain which tends a cell surface receptor other than the first receptor, useful in transporting a selected substance present in extracellular fluids, such as blood or lymph, into cells; quantitative assays for the selected substance using chimeric proteins; DNA encoding the chimeric proteins; plasmids which contain DNA encoding the chimeric proteins; mammalian cells, modified to contain DNA encoding the chimeric proteins, which express and, optionally, secrete the chimeric proteins; a method of producing the chimeric proteins; a method of isolating the chimeric proteins; a method of using the chimeric proteins to assay the selected substance; and a method of reducing extracellular levels of the selected substance through administration of the chimeric protein, which results in transport of the selected substance into cells.
    • 包含第一受体的配体结合结构域和倾向于第一受体以外的细胞表面受体的载体结构域的嵌合蛋白质可用于将存在于细胞外液体(例如血液或淋巴)中的选定物质转运到细胞中; 使用嵌合蛋白的所选物质的定量测定; 编码嵌合蛋白的DNA; 含有编码嵌合蛋白质的DNA的质粒; 哺乳动物细胞,被修饰成含有编码嵌合蛋白的DNA,其表达和任选地分泌嵌合蛋白质; 制备嵌合蛋白质的方法; 分离嵌合蛋白的方法; 使用嵌合蛋白质来测定所选择的物质的方法; 以及通过施用嵌合蛋白降低所选物质的细胞外水平的方法,其导致所选择的物质转运到细胞中。
    • 6. 发明授权
    • Detecting eukaryotic microorganisms
    • 检测真核微生物
    • US5658726A
    • 1997-08-19
    • US860295
    • 1992-03-27
    • Jeffrey F. Lemontt
    • Jeffrey F. Lemontt
    • C12Q1/04C12Q1/68C12R1/725C12R1/865C07H21/02C07H21/04
    • C12Q1/6895C12Q1/6888Y10S435/81Y10S435/921Y10S435/922Y10S435/924
    • A method for constructing a cDNA probe for use in detecting in a sample, under conditions of predetermined stringency, a target organism belonging to a strain of fungal microorganisms, and not detecting in the sample under such conditions a reference microorganism or any prokaryotic microorganism, includes the steps of determining a nucleotide base sequence in a variable region of small subunit ribosomal RNA from the target organism, the variable region being a region of the small subunit ribosomal RNA that is poorly conserved among eukaryotes and having no corresponding region in prokaryotes; comparing the nucleotide base sequence in the corresponding region of small subunit ribosomal RNA from the reference microorganism, and selecting as a useful probe site a subsequence within the determined sequence; and synthesizing a cDNA complementary to the useful probe site, the cDNA being the probe. Nucleic acid probes are constructed according to the disclosed method. A method for using such a probe for detecting a strain of fungal microorganisms in a sample includes the steps of providing such a probe, deriving RNA from the sample, contacting the probe with the RNA under conditions that allow the probe to hybridize with small subunit rRNA to form hybrid nucleic acid complexes, and detecting the hybrid nucleic acid complexes as an indication of the presence in the sample of the organism. A kit includes such a probe and instructions for its use.
    • 一种用于构建用于在预定严格条件下在样品中检测属于真菌微生物菌株的目标生物体并且在该条件下在该条件下检测参考微生物或任何原核生物微生物的cDNA探针的方法,包括 确定来自目标生物体的小亚基核糖体RNA可变区核苷酸碱基序列的步骤,可变区是真核生物中不太保守且在原核生物中没有相应区域的小亚基核糖体RNA区域; 比较来自参照微生物的小亚基核糖体RNA相应区域中的核苷酸碱基序列,并选择确定序列内的子序列作为有用的探针位点; 并合成与有用探针位点互补的cDNA,cDNA为探针。 根据所公开的方法构建核酸探针。 使用这种探针来检测样品中真菌微生物菌株的方法包括以下步骤:提供这样的探针,从样品中导出RNA,使探针与RNA在允许探针与小亚基rRNA杂交的条件下接触RNA 以形成杂交核酸复合物,并且检测杂交核酸复合物作为生物样品中存在的指示。 套件包括这样的探头和使用说明书。