Purified thermostable enzyme
    5.
    发明授权
    Purified thermostable enzyme 失效
    纯化热稳定酶

    公开(公告)号:US4889818A

    公开(公告)日:1989-12-26

    申请号:US063509

    申请日:1987-06-17

    摘要: A purified thermostable enzyme is obtained that has unique characteristics. Preferably the enzyme is isolated from the Thermus aquaticus species and has a molecular weight of about 86,000-90,000 daltons. The thermostable enzyme may be native or recombinant and may be used in a temperature-cycling chain reaction wherein at least one nucleic acid sequence is amplified in quantity from an existing sequence with the aid of selected primers and nucleotide triphosphates. The enzyme is preferably stored in a buffer of non-ionic detergents that lends stability to the enzyme.

    摘要翻译: 获得了具有独特特征的纯化的热稳定酶。 优选地,酶从水生栖热菌属物种分离并且具有约86,000-90,000道尔顿的分子量。 热稳定酶可以是天然的或重组的,并且可以用于温度循环链式反应,其中借助于所选择的引物和三磷酸核苷酸,从现有序列中至少一个核酸序列的量被扩增。 该酶优选储存在提供酶稳定性的非离子型洗涤剂的缓冲液中。

    Purified thermostable enzyme
    8.
    发明授权
    Purified thermostable enzyme 失效
    纯化热稳定酶

    公开(公告)号:US5352600A

    公开(公告)日:1994-10-04

    申请号:US971798

    申请日:1992-11-05

    摘要: A purified thermostable enzyme is obtained that has unique characteristics. Preferably the enzyme is isolated from the Thermus aquaticus species and has a molecular weight of about 86,000-95,000 daltons. The thermostable enzyme may be native or recombinant and may be used in a temperature-cycling chain reaction wherein at least one nucleic acid sequence is amplified in quantity from an existing sequence with the aid of selected primers and nucleotide triphosphates. The enzyme is preferably stored in a buffer containing non-ionic detergents that lends stability to the enzyme.

    摘要翻译: 获得了具有独特特征的纯化的热稳定酶。 优选地,酶从水生栖热菌属物种分离并且具有约86,000-95,000道尔顿的分子量。 热稳定酶可以是天然的或重组的,并且可以用于温度循环链式反应,其中借助于所选择的引物和三磷酸核苷酸,从现有序列中至少一个核酸序列的量被扩增。 该酶优选储存在含有赋予酶稳定性的非离子型洗涤剂的缓冲液中。

    Selectable fusion protein having aminoglycoside phosphotransferase
activity
    9.
    发明授权
    Selectable fusion protein having aminoglycoside phosphotransferase activity 失效
    具有氨基糖苷磷酸转移酶活性的可选择的融合蛋白

    公开(公告)号:US5116750A

    公开(公告)日:1992-05-26

    申请号:US223430

    申请日:1988-07-22

    摘要: A novel a selectable fusion protein having aminoglycoside phosphotransferase activity is disclosed. The marker comprises the coding sequences for aminoglycoside phosphotransferase I (APH-I) which has been modified and truncated so as to render its use in recombinant vectors more convenient. The modified, truncated sequence (mtAPH-I) gene is capable, upon expression, of conferring resistance to a number of antibiotics on the host. One of these antibiotics, G418, is toxic to eucaryotic as well as procaryotic hosts. Also disclosed are methods of constructing fusion proteins having N-terminal sequences corresponding to a desired peptide sequence, and C-terminal sequences comprising the amino acids encoded by mtAPH-I. The preferred N-terminal sequences are the first 11 amino acids of .beta.-isopropyl malate dehydrogenase, and the first 7 amino acids of yeast enolase.

    摘要翻译: 公开了一种具有氨基糖苷磷酸转移酶活性的新型可选择融合蛋白。 该标记包括已被修饰和截短的氨基糖苷磷酸转移酶I(APH-1)的编码序列,使其在重组载体中的使用更加方便。 修饰的截短序列(mtAPH-I)基因在表达时能够赋予宿主对许多抗生素的抗性。 其中一种抗生素G418对真核生物以及原核生物有毒性。 还公开了构建具有对应于所需肽序列的N末端序列的融合蛋白的方法,以及包含由mtAPH-I编码的氨基酸的C-末端序列。 优选的N-末端序列是苹果酸β-异丙酯脱氢酶的前11个氨基酸,酵母烯醇化酶的前7个氨基酸。

    Stabilized thermostable nucleic acid polymerase compositions containing
non-ionic polymeric detergents
    10.
    发明授权
    Stabilized thermostable nucleic acid polymerase compositions containing non-ionic polymeric detergents 失效
    含有非离子聚合物洗涤剂的稳定的耐热核酸聚合酶组合物

    公开(公告)号:US6127155A

    公开(公告)日:2000-10-03

    申请号:US873897

    申请日:1992-04-24

    摘要: A purified thermostable nucleic acid polymerase is obtained that has unique characteristics. Preferably the nucleic acid polymerase is DNA polymerase isolated from a Thermus aquaticus species and has a molecular weight of about 86,000-95,000 daltons. The thermostable nucleic acid polymerase may be native or recombinant and may be used in a temperature-cycling chain reaction wherein at least one nucleic acid sequence is amplified in quantity from an existing sequence with the aid of selected primers and nucleotide triphosphates. The nucleic acid polymerase is preferably stored in a buffer containing non-ionic detergents that lends stability to the nucleic acid polymerase. A preferred buffer contains glycerol, polyoxyethylated sorbitan monolaurate, ethoxylated nonyl phenol and gelatin.

    摘要翻译: 获得了具有独特特征的纯化的热稳定性核酸聚合酶。 优选地,所述核酸聚合酶是从栖热栖热菌属物种分离的DNA聚合酶,其分子量约为86,000-95,000道尔顿。 热稳定性核酸聚合酶可以是天然的或重组的,并且可以用于温度循环链式反应,其中借助于选定的引物和三磷酸核苷酸,从现存的序列中扩增至少一个核酸序列。 核酸聚合酶优选储存在含有使核酸聚合酶具有稳定性的非离子型清净剂的缓冲液中。 优选的缓冲液含有甘油,聚氧乙基化脱水山梨糖醇单月桂酸酯,乙氧基化壬基苯酚和明胶。