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    • 21. 发明申请
    • Methods and compositions to diagnose disease using concatenated oligopeptide standard
    • 使用连接寡肽标准诊断疾病的方法和组合物
    • US20060211077A1
    • 2006-09-21
    • US11082348
    • 2005-03-17
    • Kenneth AbelAndreas BraunJohanna WhitacreKai Tang
    • Kenneth AbelAndreas BraunJohanna WhitacreKai Tang
    • C12Q1/37G01N33/00
    • C12Q1/37
    • The present invention is a method to quantitate proteins associated with a disease or disease state comprising the steps of isolating at least two target proteins from a test sample, combining the target proteins with a known concentration of a concatenated oligopeptide standard and a proteinase to form peptide fragments and standard peptide fragments. The concatenated oligopeptide standard comprising at least one peptide having an amino acid sequence substantially similar to a unique amino acid sequence of a peptide fragment of the two target proteins. The peptides for each of the target proteins are joined by proteinase cleavage sites to form the concatenated oligopeptide. Quantitation of the target proteins is determined by comparison of the peptide fragments to the standard peptide fragments using mass spectroscopy.
    • 本发明是一种定量与疾病或疾病状态相关的蛋白质的方法,包括以下步骤:从测试样品中分离出至少两种靶蛋白,将目标蛋白质与已知浓度的连接寡肽标准品和蛋白酶组合以形成肽 片段和标准肽片段。 连接的寡肽标准品包含至少一种具有与两种靶蛋白的肽片段的独特氨基酸序列基本相似的氨基酸序列的肽。 用于每种靶蛋白的肽通过蛋白酶切割位点连接以形成连接的寡肽。 通过使用质谱法将肽片段与标准肽片段进行比较来确定靶蛋白质的定量。
    • 30. 发明授权
    • Pig liver esterases
    • 猪肝酯酶
    • US08921080B2
    • 2014-12-30
    • US13265178
    • 2010-04-26
    • Martin KietzmannHarald PichlerHelmut SchwabAmin El-HeliebiChristine WinklerAndreas Braun
    • Martin KietzmannHarald PichlerHelmut SchwabAmin El-HeliebiChristine WinklerAndreas Braun
    • C12N9/18
    • C12N9/18
    • The invention relates to an isolated polypeptide having esterase activity comprising an amino acid sequence shown in any one of SEQ ID NO's 2, 4, 6, 8, 10, 12 or 14 or a homologue thereof, comprising an amino acid substitution or deletion of one or more amino acids as shown in said SEQ ID NO's and resulting in a mutant polypeptide having an increased concentration of the fraction of the mutant polypeptide being present as an active and soluble protein in cleared lysate of the mutant polypeptide expressed in E. coli relative to the concentration of the fraction of the polypeptide without the mutation being present as an active and soluble protein in cleared lysate of the polypeptide without the one or more deletion or substitution expressed in E. coli under the same conditions. The invention also relates to nucleic acid encoding the polypeptides according to the invention, and the use of the polypeptides.
    • 本发明涉及具有酯酶活性的分离多肽,其包含SEQ ID NO:2,4,6,8,10,12或14中任一项所示的氨基酸序列或其同源物,其包含氨基酸取代或缺失的一个 或更多的氨基酸,如所述SEQ ID NO所示,并且产生突变体多肽的浓度增加,所述突变体多肽作为活性和可溶性蛋白质存在于大肠杆菌中表达的突变多肽的澄清裂解物中,相对于 不存在突变的多肽的级分的浓度作为活性和可溶性蛋白质存在于多肽的澄清裂解物中,而在相同条件下在大肠杆菌中表达的一个或多个缺失或取代。 本发明还涉及编码根据本发明的多肽的核酸和多肽的用途。