HOMOBIFUNCTIONAL AGENTS FOR COUPLING ENZYMES AND THE LIKE TO ANTIBODIES AND THE LIKE
    1.
    发明申请
    HOMOBIFUNCTIONAL AGENTS FOR COUPLING ENZYMES AND THE LIKE TO ANTIBODIES AND THE LIKE 审中-公开
    用于联合酶的同功能药物,类似于抗体和类似物

    公开(公告)号:WO1992007268A1

    公开(公告)日:1992-04-30

    申请号:PCT/US1991007640

    申请日:1991-10-18

    CPC classification number: C12N11/06 C07K14/47 G01N33/54353 G01N33/82

    Abstract: A coupling agent useful in conducting immunoassays, particularly assays for B12, is disclosed. The coupling agent has formula (I) where Z and Z' can be the same or different, and each is H2NHN, ICH2, (a) or (b); k, m and n are integers from 1 to 10, X is an alkylene group, a cycloalkylene group, an alkylcycloalkylene group, a bivalent aromatic group, or an aminoalkylene group, R and R' can be the same or different, and each is a substituted or unsubstituted aminoalkylene group having from 1 to 10 carbon atoms or a cycloalkylene or alkylcycloalkylene group having from 5 to 20 carbon atoms. Z and Z' are the same except that they can be the same or different when both are (c). A method for purifying an aqueous intrinsic factor solution which contains R-protein is disclosed. The method involves adding to the intrinsic factor solution an amount of cobinamide sufficient to bind substantially all of the R-protein in the solution and an amount of an intrinsic factor affinity resin sufficient to bind the intrinsic factor in the solution, washing the bound cobinamide and the R-protein from the resin, eluting the intrinsic factor from the resin, and dialyzing the eluted intrinsic factor. The purified intrinsic factor can contain less than 0.004 percent cross reactivity with cobinamides, and at least 95 percent of the proteins in the purified material can bind cobalamins. A conjugate where microparticles and the purified intrinsic factor are conjugated by a moiety from one of the foregoing coupling agents is also disclosed, as is a kit for conducting an assay for cobalamins which includes the conjugate of microparticles and purified intrinsic factor. A method for conducting an assay for cobalamins, which method involves the use of the conjugate of microparticles and purified intrinsic factor is also disclosed.

    Abstract translation: 公开了用于进行免疫测定的偶联剂,特别是B12的测定法。 偶联剂具有式(I),其中Z和Z'可以相同或不同,并且各自为H 2 NHN,ICH 2,(a)或(b); k,m和n为1至10的整数,X为亚烷基,亚环烷基,烷基亚环烷基,二价芳基或氨基亚烷基,R和R'可以相同或不同, 具有1至10个碳原子的取代或未取代的氨基亚烷基或具有5至20个碳原子的亚环烷基或烷基亚环烷基。 Z和Z'是相同的,除了它们可以相同或不同,当两者都是(c)时。 公开了一种纯化含有R蛋白的含水内在因子溶液的方法。 该方法包括向内在因子溶液中加入足以结合溶液中基本上所有的R-蛋白质的一定量的配位体酰胺和一定量的足以结合溶液中固有因子的内在因子亲和树脂,洗涤结合的共混体系和 来自树脂的R-蛋白质,从树脂中洗脱固有因子,并透析洗脱的固有因子。 纯化的内在因子可以含有少于0.004%的与联苯胺酰胺的交叉反应性,并且纯化物质中至少95%的蛋白质可以结合钴胺素。 还公开了其中微粒和纯化的内在因子通过来自前述偶联剂之一的部分缀合的缀合物,以及用于进行包括微粒的缀合物和纯化的内在因子的钴胺素测定的试剂盒。 还公开了用于进行钴胺素测定的方法,该方法涉及使用微粒的缀合物和纯化的内在因子。

    HOMOBIFUNCTIONAL AGENTS FOR COUPLING ENZYMES AND THE LIKE TO ANTIBODIES AND THE LIKE
    2.
    发明授权
    HOMOBIFUNCTIONAL AGENTS FOR COUPLING ENZYMES AND THE LIKE TO ANTIBODIES AND THE LIKE 失效
    离合器酶及其联合国模拟同双功能剂与抗体及其模拟

    公开(公告)号:EP0555336B1

    公开(公告)日:1996-07-24

    申请号:EP91920049.3

    申请日:1991-10-18

    CPC classification number: C12N11/06 C07K14/47 G01N33/54353 G01N33/82

    Abstract: A coupling agent useful in conducting immunoassays, particularly assays for B12, is disclosed. The coupling agent has formula (I) where Z and Z' can be the same or different, and each is H2NHN, ICH2, (a) or (b); k, m and n are integers from 1 to 10, X is an alkylene group, a cycloalkylene group, an alkylcycloalkylene group, a bivalent aromatic group, or an aminoalkylene group, R and R' can be the same or different, and each is a substituted or unsubstituted aminoalkylene group having from 1 to 10 carbon atoms or a cycloalkylene or alkylcycloalkylene group having from 5 to 20 carbon atoms. Z and Z' are the same except that they can be the same or different when both are (c). A method for purifying an aqueous intrinsic factor solution which contains R-protein is disclosed. The method involves adding to the intrinsic factor solution an amount of cobinamide sufficient to bind substantially all of the R-protein in the solution and an amount of an intrinsic factor affinity resin sufficient to bind the intrinsic factor in the solution, washing the bound cobinamide and the R-protein from the resin, eluting the intrinsic factor from the resin, and dialyzing the eluted intrinsic factor. The purified intrinsic factor can contain less than 0.004 percent cross reactivity with cobinamides, and at least 95 percent of the proteins in the purified material can bind cobalamins. A conjugate where microparticles and the purified intrinsic factor are conjugated by a moiety from one of the foregoing coupling agents is also disclosed, as is a kit for conducting an assay for cobalamins which includes the conjugate of microparticles and purified intrinsic factor. A method for conducting an assay for cobalamins, which method involves the use of the conjugate of microparticles and purified intrinsic factor is also disclosed.

    HOMOBIFUNCTIONAL AGENTS FOR COUPLING ENZYMES AND THE LIKE TO ANTIBODIES AND THE LIKE
    3.
    发明公开
    HOMOBIFUNCTIONAL AGENTS FOR COUPLING ENZYMES AND THE LIKE TO ANTIBODIES AND THE LIKE 失效
    同双功能剂离合器酶及其联合国模拟抗体及其类似物。

    公开(公告)号:EP0555336A1

    公开(公告)日:1993-08-18

    申请号:EP91920049.0

    申请日:1991-10-18

    CPC classification number: C12N11/06 C07K14/47 G01N33/54353 G01N33/82

    Abstract: Agent de couplage utilisé pour procéder à des dosages immunologiques, notamment des dosages de B12. L'agent de couplage a la formule (I) dans laquelle Z et Z' peuvent être identiques ou différents, et ils représentent chacun H2NHN,ICH2, (a) ou (b); k, m et n représentent des nombres entiers compris entre 1 et 10, X représente un groupe alkylène, un groupe cycloalkylène, un groupe alkylcycloalkylène, un groupe aromatique bivalent ou un groupe aminoalkylène, R et R' peuvent être identiques ou différents et ils représentent chacun un groupe aminoalkylène substitué ou non substitué comportant 1 à 10 atomes de carbone ou un groupe cycloalkylène ou alkylcycloalkylène comportant 5 à 20 atomes de carbone. Z et Z' sont identiques excepté qu'ils peuvent être identiques ou différents lorsqu'ils ont tous les deux la formule (c). L'invention concerne également un procédé de purification d'une solution de facteur intrinsèque aqueuse contenant une protéine R. Le procédé consiste à additionner à la solution de facteur intrinsèque une quantité de cobinamide suffisante pour lier sensiblement toute la protéine R dans la solution, ainsi qu'une quantité de résine d'affinité du facteur intrinsèque suffisante pour lier le facteur intrinsèque dans la solution, à laver le cobinamide lié ainsi que la protéine R de la résine, à éluer le facteur intrinsèque de ladite résine, et à dialyser le facteur intrinsèque élué. Ledit facteur intrinsèque purifié peut avoir moins de 0,004 % de réactivité avec les cobinamides, et au moins 95 % des protéines se trouvant dans la matière purifiée peuvent lier des cobalamines. De plus, l'invention concerne un conjugué dans lequel des microparticules ainsi que le facteur intrinsèque purifié sont conjugués par une fraction provenant d'un des agents de couplage précités, ainsi qu'un matériel permettant de procéder à un dosage de cobalamine comprenant le conjugué de microparticules et de facteur intrinsèque purifié. En outre, l'invention concerne un procédé de réalisation d'un dosage de cobalamine consistant à

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