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Abstract:
克隆一个来源于串珠镰孢菌(Fusarium moniliforme Sheld)的角质酶基因,该基因全长693 bp,编码231个成熟的氨基酸。克隆的角质酶基因构建到p PIC9K质粒,获得重组表达载体,转入毕赤酵母(Pichia pastoris Gs115)中进行高效表达。经甲醇诱导96 h,测得重组酶酶活为71.68 U/m L,经纯化获得比活力为2490.1 U/mg。对纯化后的角质酶进行酶学性质分析结果表明,其最适反应p H为9.0,在p H5.0~9.0范围内之间重组角质酶的酶活相对稳定;最适反应温度为35℃,在40℃条件下保温1 h酶活力保持70%以上。KCl、Triton X-...
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食品工业科技
Year: 2018
Issue: 18
Volume: 39
Page: 87-92
Cited Count:
SCOPUS Cited Count:
ESI Highly Cited Papers on the List: 0 Unfold All
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Chinese Cited Count:
30 Days PV: 4
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