Indexed by:
Abstract:
采用硫酸铵分段盐析、透析、DEAE-纤维素离子交换层析和葡聚糖Sephadex G-100凝胶层析,从南日鲍内脏中分离纯化得到一种β-葡萄糖苷酶.SDS-PAGE分析表明,所纯化的β-葡萄糖苷酶为单聚体,分子量约为90 kDa,N-端8个氨基酸残基序列为AGMLYPRV.β-葡萄糖苷酶的最适温度为50℃,最适pH值为5.0,Mn2+、Cu2+、Ba2+和Zn2对酶活力有显著的促进作用,而Al3+对酶有明显的抑制作用,SDS则使酶变性失活;pNPG与β-葡萄糖苷酶之间的亲和程度最高,纤维二糖和京尼平苷次之,水杨苷最差.
Keyword:
Reprint 's Address:
Email:
Version:
Source :
福州大学学报(自然科学版)
ISSN: 1000-2243
CN: 35-1337/N
Year: 2014
Issue: 3
Volume: 42
Page: 480-485
Cited Count:
SCOPUS Cited Count:
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count: -1
Chinese Cited Count:
30 Days PV: 2
Affiliated Colleges: