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    • 1. 发明申请
    • DETECTION OF MOLECULAR INTERACTIONS BY BETA-LACTAMASE REPORTER FRAGMENT COMPLEMENTATION
    • 通过BETA-LACTAMASE报告片段补体检测分子相互作用
    • WO2003058197A2
    • 2003-07-17
    • PCT/US2002/041587
    • 2002-12-26
    • THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITYBLAU, Helen, M.BALINT, Robert, F.WEHRMAN, Thomas, S.HER, Jeng-Horng
    • BLAU, Helen, M.BALINT, Robert, F.WEHRMAN, Thomas, S.HER, Jeng-Horng
    • G01N
    • G01N33/542G01N2333/986
    • Methods and compositions for detecting molecular interactions, particularly, protein-protein interactions, using at least two inactive, weakly-complementing ß-lactamase fragments are provided. The invention allows detection of such interactions in eukaryotic and mammalian cells , in situ or in vitro . Detection of molecular interactions in mammalian cells is not limited to the nuclear compartment, but can be accomplished in the cytoplasm, cell surface, organelles, or between these entities. Methods provided utilize novel compositions comprising fusion proteins between molecules of interest and inactive, weakly-complementing-ßlactamase fragments. Association of the molecules of interest brings the corresponding complementary ß-lactamase fragments into close enough proximity for complementation to occur and ß-lactamase activity to be observed. The invention is useful in the study of protein-protein interactions, functional genomics, agonist and antagonist screening and drug discovery.
    • 提供了使用至少两个无活性的弱互补的β-内酰胺酶片段检测分子相互作用,特别是蛋白质 - 蛋白质相互作用的方法和组合物。 本发明允许在原位或体外在真核和哺乳动物细胞中检测这种相互作用。 哺乳动物细胞中分子相互作用的检测不限于核隔室,而是可以在细胞质,细胞表面,细胞器或这些实体之间完成。 提供的方法利用包含目标分子和无活性的弱互补的β-内酰胺酶片段之间的融合蛋白的新型组合物。 关联分子的关联使相应的互补的β-内酰胺酶片段足够接近以进行互补发生,并观察β-内酰胺酶活性。 本发明可用于研究蛋白质 - 蛋白质相互作用,功能基因组学,激动剂和拮抗剂筛选和药物发现。
    • 3. 发明申请
    • MOLECULES FOR THE INDUCTION OF IMMUNOLOGICAL TOLERANCE
    • 诱导免疫耐受性的分子
    • WO1997030150A2
    • 1997-08-21
    • PCT/EP1997000777
    • 1997-02-17
    • PANGENETICS B.V.BALINT, Robert, F.WAUBEN, Marca, Henriëtte, Michaela
    • PANGENETICS B.V.
    • C12N15/01
    • C12N15/1058A61K38/00C07K14/4713C12N15/102
    • The invention relates to a population of protein molecules having a distribution of specific mutations in the amino acid sequence as compared to a parent protein, which population of protein molecules is obtainable by establishing the parental amino acid sequence of the protein to be mutated and deriving therefrom a parental nucleotide sequence encoding the amino acid sequence, optionally selecting sites within this parental amino acid sequence, mutation of which is more desirable or less desirable, designing overlapping oligonucleotides encoding parts of the protein and harbouring one or more codon changes as compared to the corresponding parental nucleotide sequence, composing of the overlapping oligonucleotides a population of mutated nucleotide sequences encoding mutated versions of the parent protein thus establishing a library, and expressing the mutated versions of the mutated nucleotide sequences to obtain a population of mutated proteins.
    • 本发明涉及与亲本蛋白相比具有氨基酸序列中特异性突变分布的蛋白质分子群体,蛋白质分子的群体可以通过建立待突变的蛋白质的亲本氨基酸序列并从其衍生得到 编码氨基酸序列的亲本核苷酸序列,任选地选择该亲本氨基酸序列内的位点,其突变是更期望的或不理想的,设计与编码蛋白质部分并且与相应的蛋白质相比具有一个或多个密码子变化的重叠寡核苷酸 亲本核苷酸序列,构成重叠寡核苷酸,编码突变型母体蛋白的突变核苷酸序列群,从而建立文库,并表达突变型突变型核苷酸序列以获得突变型蛋白质群体。