Method of preparing lysozyme dimers
    1.
    发明授权
    Method of preparing lysozyme dimers 失效
    制备溶菌酶二聚体的方法

    公开(公告)号:US5314816A

    公开(公告)日:1994-05-24

    申请号:US867706

    申请日:1992-07-08

    IPC分类号: C12N9/36 H61K37/48 H61K37/54

    CPC分类号: C12N9/2462

    摘要: A method is provided for preparing a highly purified lysozyme dimer product which comprises dimerizing the lysozyme monomer with a suberimidate coupling reagent in a buffer solution adjusted to pH 10, stopping the dimerization at a given point by lowering the pH to 7 via addition of HCl or other suitable acid solution, and purifying the dimeric lysozyme by a series of elution steps carried out using ion exchange resin column chromatography. Monomeric lysozyme remaining undimerized by the initial dimerization step is recycled into the process in order to increase yield. The present system is advantageous in that large amounts of purified lysozyme dimer can be prepared efficiently and relatively inexpensively, and the lysozyme dimer so produced is useful in treating viral and/or bacterial diseases without causing the cytotoxic effects associated with the lysozyme monomer.

    摘要翻译: PCT No.PCT / US90 / 00140 Sec。 371日期:1992年7月8日 102(e)日期1992年7月8日PCT 1990年1月8日PCT PCT。 公开号WO91 / 10731 日本1991年7月25日提供了一种制备高纯度溶菌酶二聚体产物的方法,该方法包括将溶菌酶单体与缓冲溶液中的苏木二酯偶联剂二聚化,调节至pH10,通过降低pH在停止给定点的二聚 通过加入HCl或其它合适的酸溶液,并通过使用离子交换树脂柱色谱法进行的一系列洗脱步骤纯化二聚溶菌酶。 通过初始二聚步骤保持未稳定化的单体溶菌酶被再循环到该方法中以提高产率。 本发明的系统的优点在于可以有效和相对廉价地制备大量纯化的溶菌酶二聚体,所产生的溶菌酶二聚体可用于治疗病毒和/或细菌疾病,而不会引起与溶菌酶单体相关的细胞毒性作用。