Aldol consensations by catalytic antibodies
    23.
    发明授权
    Aldol consensations by catalytic antibodies 失效
    通过催化抗体的Aldol认可

    公开(公告)号:US06589766B1

    公开(公告)日:2003-07-08

    申请号:US09965512

    申请日:2001-09-25

    IPC分类号: C12P726

    CPC分类号: C12P7/26 C12N9/0002

    摘要: Catalytic antibodies, including 38C2 and 33F12, are capable of efficiently catalyzing a wide variety of ketone-ketone, ketone-aldehyde, aldehyde-ketone, and aldehyde-aldehyde intermolecular aldol reactions, and in some cases to catalyze their subsequent dehydration to yield aldol condensation products. A number of intramolecular aldol reactions have also been defined. Catalysis of all intramolecular aldol reactions examined yields the corresponding condensation products.

    摘要翻译: 包括38C2和33F12在内的催化抗体能够有效地催化各种酮 - 酮,酮 - 醛,醛 - 酮和醛 - 醛分子间醛醇反应,并且在某些情况下催化它们随后的脱水以产生醛醇缩合 产品。 还定义了许多分子内醛醇反应。 所检测的所有分子内醛醇反应的催化产生相应的缩合产物。

    Aldol condensations by catalytic antibodies
    24.
    发明授权
    Aldol condensations by catalytic antibodies 失效
    通过催化抗体的醛醇缩合

    公开(公告)号:US06326176B1

    公开(公告)日:2001-12-04

    申请号:US09573753

    申请日:2000-05-18

    IPC分类号: C12P726

    CPC分类号: C12P7/26 C12N9/0002

    摘要: Catalytic antibodies, including 38C2 and 33F12, are capable of efficiently catalyzing a wide variety of ketone-ketone, ketone-aldehyde, aldehyde-ketone, and aldehyde-aldehyde intermolecular aldol reactions, and in some cases to catalyze their subsequent dehydration to yield aldol condensation products. A number of intramolecular aldol reactions have also been defined. Catalysis of all intramolecular aldol reactions examined yields the corresponding condensation products.

    摘要翻译: 包括38C2和33F12在内的催化抗体能够有效地催化各种酮 - 酮,酮 - 醛,醛 - 酮和醛 - 醛分子间醛醇反应,并且在某些情况下催化它们随后的脱水以产生醛醇缩合 产品。 还定义了许多分子内醛醇反应。 所检测的所有分子内醛醇反应的催化产生相应的缩合产物。

    Use of catalytic antibodies for synthesizing epothilone
    25.
    发明授权
    Use of catalytic antibodies for synthesizing epothilone 失效
    使用催化抗体合成埃坡霉素

    公开(公告)号:US06294374B1

    公开(公告)日:2001-09-25

    申请号:US09415453

    申请日:1999-10-08

    IPC分类号: C12S1300

    摘要: Three monoclonal aldolase antibodies, generated against a &bgr;-diketone hapten by reactive immunization, catalyzed rapid and highly enantioselective retro-aldol reactions providing ent-9a-k by kinetic resolution. Compounds 9a, 9g and 9k were resolved in multi-gram quantities using 0.005-0.0004 mol % antibody catalyst. Enantiomerically pure starting materials, 9a-k, are useful synthons for the construction of epothilones A-E (2-6) and their analogs including 13-alkyl derivatives. Previously, the use of compound 9a as a synthon was reported in the preparation of epothilones A-D, 2-5. To further expand this synthon-based strategy, syntheses of epothilone E, 6, 13-methyl epothilone C, 7, and their trans-isomers have been achieved starting from enantiomerically pure thiazole aldols 9g and 9a, respectively, prepared by large-scale antibody catalyzed resolutions.

    摘要翻译: 通过反应性免疫针对β-二酮半抗原产生的三种单克隆醛缩酶抗体催化快速和高度对映选择性的醛缩醇反应,通过动力学拆分提供ent-9a-k。 化合物9a,9g和9k用0.005-0.0004mol%抗体催化剂以多克量分离。 对映体纯原料9a-k是构建埃坡霉素A-E(2-6)及其类似物包括13-烷基衍生物的有用合成物。 以前,在制备埃坡霉素A-D,2-5中报道了使用化合物9a作为合成子。 为了进一步扩展这种基于合成子的策略,从分别由大规模抗体制备的对映体纯的噻唑醛醇9g和9a开始合成埃坡霉素E,6,13-​​甲基埃博霉素C 7及其反式异构体 催化分解。

    Antibody catalysis of enantio- and diastereo-selective aldol reactions
    26.
    发明授权
    Antibody catalysis of enantio- and diastereo-selective aldol reactions 有权
    对映体和非对映选择性醛醇反应的抗体催化

    公开(公告)号:US06210938B1

    公开(公告)日:2001-04-03

    申请号:US09458367

    申请日:1999-12-09

    IPC分类号: C12P726

    摘要: Nine efficient aldolase antibodies were generated using hapten 2. This hapten combines, in a single molecule, structural components employed for reactive immunization with structural components employed for forming a transition state analog of the aldol reaction. Characterization of two of these antibodies reveals that they are highly proficient (up to 1000-fold better than any other antibody catalyst) and enantioselective catalysts for aldol and retro-aldol reactions and exhibit enantio- and diastereo- selectivities opposite that of antibody 38C2.

    摘要翻译: 使用半抗原2产生九种有效的醛缩酶抗体。该半抗原在单个分子中结合用于反应性免疫的结构组分与用于形成醛醇反应的过渡态类似物的结构组分。 这些抗体中的两种的表征显示它们是非常熟练的(比任何其他抗体催化剂优于1000倍)和用于醛醇醛和醛缩醇反应的对映选择性催化剂,并显示与抗体38C2相反的对映体和非对映体选择性。

    Chimeric zinc finger recombinases optimized for catalysis by directed evolution
    28.
    发明授权
    Chimeric zinc finger recombinases optimized for catalysis by directed evolution 失效
    通过定向进化优化催化的嵌合锌指重组酶

    公开(公告)号:US08685687B2

    公开(公告)日:2014-04-01

    申请号:US12309096

    申请日:2007-07-05

    IPC分类号: C12N9/00

    摘要: The present invention is directed to chimeric recombinases comprising a serine recombinase operatively linked to a zinc finger nucleotide binding domain such that the chimeric recombinase protein catalyzes site-specific recombination at a DNA site specifically bound by the zinc finger nucleotide binding domain. The serine recombinase can be one of several naturally occurring serine recombinases. The invention also includes nucleic acids encoding the chimeric recombinases, vectors including the nucleic acids, host cells transformed or transfected with the vectors, methods of using the chimeric recombinases to carry out recombination, methods of using substrate-linked protein evolution to generate additional chimeric recombinases, methods of using the chimeric recombinases for gene therapy, and pharmaceutical compositions.

    摘要翻译: 本发明涉及包含与锌指核苷酸结合结构域有效连接的丝氨酸重组酶的嵌合重组酶,使得嵌合重组酶蛋白在由锌指核苷酸结合结构域特异性结合的DNA位点处催化位点特异性重组。 丝氨酸重组酶可以是几种天然存在的丝氨酸重组酶之一。 本发明还包括编码嵌合重组酶的核酸,包括核酸的载体,用载体转化或转染的宿主细胞,使用嵌合重组酶进行重组的方法,使用底物连接蛋白进化产生另外的嵌合重组酶的方法 ,使用嵌合重组酶进行基因治疗的方法和药物组合物。

    Methods of Generating Zinc Finger Nucleases Having Altered Activity
    30.
    发明申请
    Methods of Generating Zinc Finger Nucleases Having Altered Activity 审中-公开
    产生具有改变活性的锌指核酸酶的方法

    公开(公告)号:US20120329067A1

    公开(公告)日:2012-12-27

    申请号:US13574223

    申请日:2011-01-21

    摘要: Provided herein are zinc linger nucleases having altered, arid in particular, improved catalytic activity and methods of generating such nucleases. Accordingly, there are provided methods for identifying improved catalytic activity of a ZFN by expressing a mutated zinc finger nuclease in a cell containing a reporter construct with a toxic gene, and a zinc finger nuclease cleavage site that is recognized by the ZFN. Survival of the cell is positively correlated with catalytic activity of the ZFN; thus, libraries of mutated ZFKs may be selected for altered catalytic activity based on relative survival rates, Methods of using identified ZFNs are also provided.

    摘要翻译: 本文提供了具有改变,特别是改进的催化活性和产生这种核酸酶的方法的锌连环核酸酶。 因此,提供了通过在含有具有毒性基因的报道构建体的细胞中表达突变的锌指核酸酶以及通过ZFN识别的锌指核酸酶切割位点来鉴定ZFN的改善的催化活性的方法。 细胞存活与ZFN的催化活性呈正相关; 因此,可以基于相对存活率选择突变的ZFK文库以改变催化活性,还提供使用鉴定的ZFN的方法。