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发明授权
CN101412994B 使用粒酶B蛋白酶切割融合蛋白 失效 - 权利终止 转让

使用粒酶B蛋白酶切割融合蛋白
摘要：
通过使用粒酶B蛋白酶(EC3.4.21.79)对融合蛋白进行酶切制备呈真实形式的目标多肽的方法。还提供了包含目标多肽和融合伴侣的融合蛋白，其中在目标多肽和融合伴侣之间的连接区包含紧邻目标多肽的粒酶B蛋白酶切割位点；还提供了人粒酶B蛋白酶变异体，其中第228号的(胰凝乳蛋白酶原编号)半胱氨酸残基突变为苯丙氨酸。
摘要（英）：

Provided is a method for the preparation of a polypeptide of interest in authentic form by enzymatic cleavage of fusion proteins using Granzyme B protease (EC 3.4.21.79). There is also provided fusion proteins comprising a polypeptide of interest and a fusion partner, wherein the junction region between the polypeptide of interest and the fusion partner comprises a Granzyme B protease cleavage site adjacent to the polypeptide of interest, and a human Granzyme B protease variant wherein the Cystein residue no. 228 (chymotrypsinogen numbering) is mutated to Phenylalanine.

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