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Characterization of a recombinant granzyme B derivative as a 'restriction' protease

机译:重组粒酶B衍生物作为“限制性”蛋白酶的表征

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Blood coagulation factor X-a (FXa) and Thrombin are well-known serine proteases often used for processing of recombinant fusion proteins., but because they are purified from bovine blood or other animal sources. there is a risk of pathogenic contaminants in the preparation of the proteases. We report here the characterization of a recombinant serine protease produced in Escherichia coli, which can be used as a specific and efficient alternative to FXa, and Thrombin as processing protease. This recombinant protease is derived from human granzyme B (GrB). The protease is found to be very stable in general. and it performs very well in the cleavage of several different fusion proteins tested and was even found superior to processing by FXa, in two cases. (C) 2004 Elsevier Inc. All rights reserved.
机译:凝血因子X-a(FXa)和凝血酶是众所周知的丝氨酸蛋白酶,通常用于重组融合蛋白的加工,但是因为它们是从牛血或其他动物来源中纯化的。在蛋白酶的制备中存在致病性污染物的风险。我们在这里报告了在大肠杆菌中产生的重组丝氨酸蛋白酶的表征,该蛋白可以用作FXa的特异性和高效替代品,而凝血酶则可以作为加工蛋白酶。该重组蛋白酶衍生自人颗粒酶B(GrB)。发现该蛋白酶通常非常稳定。在两种测试中,它在切割几种不同的融合蛋白时均表现出色,甚至被发现优于FXa处理。 (C)2004 Elsevier Inc.保留所有权利。

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