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    • 8. 发明申请
    • Method of Preparing Botulinum Neurotoxin Type E Light Chain
    • 肉毒杆菌神经毒素E型轻链的制备方法
    • US20090182123A1
    • 2009-07-16
    • US12273157
    • 2008-11-18
    • Eric A. JohnsonMarite BradshawMichael BaldwinJoseph T. Barbieri
    • Eric A. JohnsonMarite BradshawMichael BaldwinJoseph T. Barbieri
    • C07K14/33
    • C07K14/33
    • The present invention provides a preparation of botulinum toxin light chain type A or E, wherein the preparation is both catalytically active and soluble. Preferably, the preparation consists essentially of amino acid residues 1 through 425 of the botulinum toxin light chain type A. A method of screening inhibitors is also provided, wherein the method comprises exposing a test inhibitor to the preparation of botulinum toxin light chain type A and evaluating the biological activity of the preparation. In another embodiment, a method of providing a catalytically active, soluble preparation of botulinum toxin light chain, type A is provided, wherein the method comprises obtaining an expression vector comprising a DNA sequence encoding amino acid residues 1-425 and expressing a polypeptide.
    • 本发明提供了A型或E型轻链型肉毒杆菌毒素的制备方法,其中所述制剂既具有催化活性,又具有可溶性。 优选地,制剂基本上由A型肉毒毒素轻链的氨基酸残基1至425组成。还提供了筛选抑制剂的方法,其中所述方法包括将测试抑制剂暴露于A型轻链A型肉毒杆菌毒素的制备中, 评估制剂的生物活性。 在另一个实施方案中,提供了提供A型肉毒毒素轻链的催化活性可溶性制剂的方法,其中所述方法包括获得包含编码氨基酸残基1-425的DNA序列并表达多肽的表达载体。