过氧化氢酶的研究与应用新进展刘灵芝

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2009,Vol.26No.3 Chemistry&Bioengineering15   :国家科技支撑计划资助项目(2008BAD91B01),北京市科技新星计划资助项目(2006B22):2008-11-13:刘灵芝(1983-),女,河南人,硕士研究生,研究方向:生物化工;通讯联系人:罗晖,副教授。E-mail:luohui99@yahoo.com.cn。1,2,1, 1,2,2,2, 1(1.北京科技大学生物科学与技术系,北京100083;2.北京科技大学环境工程系,北京100083)   :过氧化氢酶是一种广泛存在于好氧微生物和动、植物体内、催化效率较高且具有重要工业应用价值的酶。在论述过氧化氢酶的类型划分、结构特点和功能的基础上,阐述了过氧化氢酶的分离纯化和极端环境下微生物产过氧化氢酶的研究进展,并对过氧化氢酶在食品、环保、造纸、纺织等行业中的应用进行了介绍。:过氧化氢酶;极端微生物;应用;进展:Q814     :A     :1672-5425(2009)03-0015-04  (Hydrogenperoxidase)(Catalase,CAT),、,,。,、、、、[1,2]。1 CAT,CAT,、、CAT。CATCATCAT,CAT,CAT。1989,Goldberg[3]CAT[4],CAT(MonofunctionalcatalaseTypicalcatalase)、CAT(Catalase-peroxidase,CAT-POD)CAT(Mn-catalasee)。CAT:(1)CAT,;(2)CAT,(MnCAT)[5]。2 CATCAT,。,CAT,4,,,4,200~340kDa[6]。CATFe3+,2-。CAT,、。,,CAT,CAT1[7],,。CAT,、pH、H2O2。,3CAT,Kono[8]Barynin[9]。(ESR)2,Mn2(Ⅱ,Ⅲ)Mn2(Ⅲ,Ⅳ)。Mn2(Ⅱ,Ⅲ),Mn2(Ⅲ,Ⅳ)。3 CAT3.1 CAT1937Sumner,[10~13]。1999,,:/2009316   ,[14]。[15]、DEAE-SepharoseFF,。[16],SephadexG-100PEG6000。,6×His-tag,[17,18]。Gustavo[19]6×His-6×ArgC(HRPC),130,98.5%。3.2 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