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Preparation and characterization of Cu,Zn-superoxide dismutase covalently modified by polyunsaturated fatty acids
被引:7
作者:
Zhan, Z. J.
[1
]
Zhou, Z. G.
[1
]
Shan, W. G.
[1
]
机构:
[1] Zhejiang Univ Technol, Coll Pharmaceut Sci, Hangzhou 310014, Zhejiang, Peoples R China
关键词:
Cu;
Zn-superoxide dismutase;
polyunsaturated fatty acids;
chemical modification;
stability;
partition coefficient;
ALPHA-LINOLENIC ACID;
SUPEROXIDE-DISMUTASE;
CANCER-CELLS;
HYPERTROPHY;
INHIBITION;
PATHWAYS;
CATALASE;
PLASMA;
TISSUE;
LIPIDS;
D O I:
10.1134/S0006297909110133
中图分类号:
Q5 [生物化学];
Q7 [分子生物学];
学科分类号:
071010 ;
081704 ;
摘要:
To improve its stability and lipophilicity, Cu,Zn-superoxide dismutase (SOD) was chemically modified with linoleic and alpha-linolenic acids using two different methods. Higher retained enzymatic activity has been observed compared with SOD modified by macromolecular substances. Enhanced heat stability, acid and alkali resistance, and anti-pepsin/trypsin ability of the modified SOD were observed compared with those of the natural enzyme, the apparent oil-water partition coefficient being especially increased. The results characterize SOD modified with polyunsaturated fatty acids as a promising pharmacological tool.
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页码:1266 / 1269
页数:4
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