Low oxygen affinity mutant hemoglobins
    2.
    发明授权
    Low oxygen affinity mutant hemoglobins 失效
    低氧亲和力突变体血红蛋白

    公开(公告)号:US06803212B2

    公开(公告)日:2004-10-12

    申请号:US09986633

    申请日:2001-11-09

    IPC分类号: C12P2106

    CPC分类号: C07K14/805 A61K38/00

    摘要: Non-naturally occurring mutant hemoglobins rHb (&bgr;N108Q) and rHb (&bgr;L105W) are provided that have a lower oxygen affinity than that of native hemoglobin, but high cooperativity in oxygen binding. rHb (&bgr;N108Q) also exhibits enhanced stability against autoxidation. The mutant hemoglobins are preferably produced by recombinant DNA techniques. Such mutant hemoglobins may be used as a component of a blood substitute and hemoglobin therapeutics.

    摘要翻译: 提供非天然存在的突变体血红蛋白rHb(βN108Q)和rHb(βL105W),其具有比天然血红蛋白低的氧亲和力,但氧结合中的高协同性。 rHb(betaN108Q)也表现出增强的抗氧化稳定性。 突变体血红蛋白优选通过重组DNA技术产生。 这种突变体血红蛋白可以用作血液代用品和血红蛋白治疗剂的组分。

    Low oxygen affinity mutant hemoglobins
    5.
    发明授权
    Low oxygen affinity mutant hemoglobins 有权
    低氧亲和力突变体血红蛋白

    公开(公告)号:US06486123B1

    公开(公告)日:2002-11-26

    申请号:US09598218

    申请日:2000-06-21

    IPC分类号: C07K14885

    CPC分类号: C07K14/805 A61K38/00

    摘要: Non-naturally occurring mutant hemoglobins rHb (&bgr;N108Q) and rHb (&bgr;L105W) are provided that have a lower oxygen affinity than that of native hemoglobin, but high cooperativity in oxygen binding. rHb (&bgr;N108Q) also exhibits enhanced stability against autoxidation. The mutant hemoglobins are preferably produced by recombinant DNA techniques. Such mutant hemoglobins may be used as a component of a blood substitute and hemoglobin therapeutics.

    摘要翻译: 提供非天然存在的突变体血红蛋白rHb(βN108Q)和rHb(βL105W),其具有比天然血红蛋白低的氧亲和力,但氧结合中的高协同性。 rHb(betaN108Q)也表现出增强的抗氧化稳定性。 突变体血红蛋白优选通过重组DNA技术产生。 这种突变体血红蛋白可以用作血液代用品和血红蛋白治疗剂的组分。

    Unmodified recombinant human adult hemoglobin production
    6.
    发明授权
    Unmodified recombinant human adult hemoglobin production 失效
    未经修饰的重组人成年血红蛋白生成

    公开(公告)号:US5753465A

    公开(公告)日:1998-05-19

    申请号:US298339

    申请日:1994-08-30

    CPC分类号: C07K14/805 C12N9/48 A61K38/00

    摘要: Methods for obtaining unmodified recombinant human normal adult hemoglobin involve a novel expression plasmid that coexpresses human .alpha.- and .beta.-globin genes and E. coli methionine aminopeptidase genes under the control of separate tac promoters. Methods are also provided for correcting an abnormal conformation of some of the heme groups incorporated in the proteins expressed by the expression plasmid.

    摘要翻译: 用于获得未修饰的重组人正常成人血红蛋白的方法涉及一种新颖的表达质粒,其在单独的tac启动子的控制下共同表达人α-和β-珠蛋白基因和大肠杆菌甲硫氨酸氨基肽酶基因。 还提供了用于校正由表达质粒表达的蛋白质中掺入的一些血红素基团的异常构象的方法。