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采用修饰与未修饰单壁碳纳米管固定C-C键水解酶BphD,并对固定化酶的相对活性、稳定性、重复使用性进行了考察.结果表明,未修饰单壁碳纳米管固定的BphD相对活性为游离态的52.5%,其热稳定性和在变性剂中的稳定性均有所提高,且重复使用10次仍可保持初始活力的90%.修饰单壁碳纳米管固定的BphD相对活性可达99.7%,但其稳定性没有明显提高.同源模建及分子对接分析结果显示,未修饰的单壁碳纳米管对BphD亚基之间的联系可能存在干扰作用,从而对其活性产生影响.

参考文献

[1] Karajanagi S S;Vertegel A A;Kane R S;Dordick J S .[J].LANGMUIR,2004,20:11594.
[2] Feng W;Ji P .Enzymes immobilized on carbon nanotubes. [Review][J].Biotechnology Advances: An International Review Journal,2011(6):889-895.
[3] Lee Y M;Kwon O Y;Yoon Y J;Ryu K .[J].Biotechnology Letters,2006,28:39.
[4] Tan H Sh;Feng W;Ji P J .[J].Bioresource Technology,2012,115:172.
[5] Wang L;Wei L;Chen Y;Jiang R R .[J].Journal of Biotechnology,2010,150:57.
[6] Asuri P;Bale S S;Pangule R C;Shah D A Kane R S Dordick J S .[J].LANGMUIR,2007,23:12318.
[7] Pedrosa V A;Paliwal S;Balasubramanian S;Nepal D Davis V Wild J Ramanculov E Simonian A .[J].Colloids and Surfaces B-Biointerfaces,2010,77:69.
[8] Seah S Y K;Ke J Y;Denis G;Horsman G P Fortin P D Whiting C J Eltis L D .[J].Journal of Bacteriology,2007,189:4038.
[9] Li Ch;Hassler M;Bugg T D H .[J].Chem Bio Chem,2008,9:71.
[10] Zhou H;Qu Y Y;Kong Ch L;Wu Y G Zhu K Yang J Zhou J T .[J].Biotechnology Letters,2012,34:1107.
[11] Zhou H;Qu Y Y;Bu Y B;Li X L Kong Ch L Ma O Zhang Q Zhang X W Zhou J T .[J].ChemPlusChem,2012,77:293.
[12] Bradford M M .[J].Analytical Biochemistry,1976,72:248.
[13] Arnold K;Bordoli L;Kopp J;Schwede T .The SWISS-MODEL workspace: a web-based environment for protein structure homology modelling[J].Bioinformatics,2006(2):195-201.
[14] Mashiach E;Schneidman-Duhovny D;Andrusier N;Nussinov R Wolfson H J .[J].Nucleic Acids Research,2008,36:W229.
[15] Torres-Salas P;del Monte-Martinez A;Cuti(n)o-Avila B;Rodriguez-Colinas B Alcalde M Ballesteros A O Plou F J .[J].Advanced Materials,2011,23:5275.
[16] Qu Z H;Wang G J .[J].JNanosci Nanotechnol,2012,12:105.
[17] Basha SY.;Palanivelu P. .A novel method for immobilization of invertase from the thermophilicfungus, Thermomyces lanuginosus[J].World Journal of Microbiology & Biotechnology,2000(2):151-154.
[18] Qu Y Y;Zhou H;Li A;Ma F Zhou J T .[J].Applied Microbiology and Biotechnology,2011,89:655.
[19] Zuo G H;Huang Q Wei G H;Zhou R H;Fang H P .[J].ACS Nano,2010,4:7508.
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