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    • 3. 发明授权
    • Modified polypeptides with high activity and reduced allergenicity
    • 具有高活性和降低变应原性的改良多肽
    • US06284246B1
    • 2001-09-04
    • US08903298
    • 1997-07-30
    • David J. WeisgerberDonn N. Rubingh
    • David J. WeisgerberDonn N. Rubingh
    • A61K600
    • C11D3/38627A61K8/0208A61K8/66A61K8/86A61K47/60A61K2800/57A61K2800/70A61Q5/02A61Q11/00A61Q19/00A61Q19/10C11D3/386
    • The present invention relates to a modified polypeptide which has an enzymatic activity level of greater than about 70% of the parent polypeptide and an allergenic response level of less than about 33% of the parent polypeptide. Embodiments of the present invention relate to modified polypeptides with reduced allergenicity and high enzymatice activity comprising the formula: A-Bn wherein A is an enzyme, and mixtures thereof; B is a twin polymer moiety, having a total molecular weight of from about 0.5 kilodaltons (KD) to about 40 KD, having the formula conjugated to the enzyme; wherein R1 and R2 are essentially straight chain polymers, having a molecular weight ranging from about 0.25 KD to about 20 KD; wherein the ratio of the molecular weights of R1 and R2 is from about 1:10 to about 10:1; wherein X is a linking moiety which links the twin moeity to a single site on the enzyme; and n is the number of twin polymer moietis conjugated to the enzyme, and represents an integer from about 1 to about 15.
    • 本发明涉及一种修饰的多肽,其具有大于母体多肽的约70%的酶活性水平和低于亲本多肽的约33%的过敏反应水平。 本发明的实施方案涉及具有降低的变应原性和高酶促活性的修饰多肽,其包含下式:其中A是酶及其混合物; B是具有约0.5千道尔顿(KD)至约40KD的总分子量的双聚合物部分,具有与酶结合的结合物; 其中R1和R2基本上是直链聚合物,其分子量范围为约0.25KD至约20KD; 其中R1和R2的分子量的比例为约1:10至约10:1; 其中X是连接部分,其将双重结合连接到酶上的单个位点; 并且n是与酶缀合的双重聚合物的数目,并且表示约1至约15的整数。