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author:

陈志琳 (陈志琳.) [1] | 林青君 (林青君.) [2] | 王鹏 (王鹏.) [3] | 叶秀云 (叶秀云.) [4] | 李仁宽 (李仁宽.) [5]

Indexed by:

PKU CSCD

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-...

Keyword:

克隆 分离纯化 角质酶 酶学性质

Community:

  • [ 1 ] 福州大学福建省海洋酶工程重点实验室

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Source :

食品工业科技

Year: 2018

Issue: 18

Volume: 39

Page: 87-92

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 4

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