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期刊论文

a-Lactalbumin Mutant Acting as Lysozyme

朱德煦Yuming Xue Jian-Ning Liu Ziyong Sun Zhong Ma Chunlei Wu and Dexu Zhu* State Key Laboratory of Pharmaceutical Biotechnology Department of Biochemistry Nanjing University Nanjing People's Republic of China; Institute of Molecular Medicine People's Republic of China

PROTEINS: Structure, Function, and Genetics 42: 17-22 (2001),-0001,():

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摘要/描述

A mutant of a-lactalbumin was expressed and purified, in which His32, Thr33, Glu49, Ile59, Val99, and Tyr103 were substituted by Leu32, Glu33, Asp49, Trp59, Asn99, and Ala103, respectively, to create a catalytic site of lysozyme in a-lactalbumin. The mutant catalyzed hydrolysis of the synthetic substrate, pNP-(NAcGlc)3, with a KM and kcat of 0.160

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