摘要
从泥蚶中提纯超氧化物歧化酶(SOD),分析不同浓度氯化三丁基锡(TBTCl)在不同条件下对泥蚶SOD活性的影响。结果表明,TBTCl在室温条件下对SOD活性的影响比在4℃条件下大很多,室温下TBTCl浓度达200μg·mL-1(以Sn含量计)时与SOD作用72h酶活力只保留了58.1％,而在4℃下酶活力还保留了90.9％;随着TBTCl浓度的增大及作用时间的延长,SOD的活性逐渐降低;TBTCl使SOD的耐热、耐酸碱能力降低;PAGE显示,SOD同工酶谱带随着TBTCl浓度的增大而逐渐消失。
Superoxide dismutase(SOD) was purified from Tegillarca granosa and the effects of tributyltin chloride(TBTCl) on the enzyme activity of the SOD were analyzed at different conditios. The results showed that the effects of TBTCl on SOD activity were more ohvious at room temperature than at four degrees centigrade. 58. 1 % of the enzyme activity was reserved after SOD was incubated with 200μg·mL-1 of TBTC1 for 72 hours at room temperature, while 90. 9% of the enzyme activity was reserved at four degrees centigrade. The enzyme activity of SOD was reduced with the increase of TBTC1 concentration and interaction time. TBTCl could reduce heat-resisting, acid-resisting and alkali-resisting abilities of SOD. With TBTCl concentration increase,SOD isozyme bands in the graph of polyacrylamide gel electrophoresis were getting weaker.
出处
《中国海洋药物》
CAS
CSCD
2004年第4期28-30,共3页
Chinese Journal of Marine Drugs
基金
国家自然科学基金资助项目(项目编号:30271033)
关键词
泥蚶
氯化三丁基锡
SOD
<Keyword>Tegillarca granosa (Linnaeus)
tributyltin chloride
superoxide dismutase (SOD)
