咪唑基离子液体表面活性剂与牛血清蛋白混合体系相互作用研究
Study on the interaction between imidazolium-based ionic liquid surfactant and bovine serum albumin mixed system
-
摘要: 以N-甲基咪唑、溴代十四烷和双氰胺银为原料,采用两步法合成了1-十四烷基-3-甲基咪唑双氰胺盐([C14mim][DCA]),并对其与牛血清蛋白(BSA)混合体系的相互作用进行研究,结果表明:1)混合体系的cmc值和Amin值均随BSA浓度的增加而变大;2)混合体系中[C14mim][DCA]与BSA间的相互作用对BSA上氨基酸残基微环境有影响,且主要影响BSA上的色氨酸(Trp)残基;3)混合体系中[C14mim][DCA]与BSA间的相互作用会影响体系的水力学半径,且随着[C14mim][DCA]浓度的增加,[C14mim][DCA]/BSA体系的水力学半径变大,并对BSA的结构产生影响——使BSA展开.Abstract: 1-N-tetradecyl-3-methylimidazolium dicyanamide salt ([C14mim] [DCA] was synthesized by two-step method using N-methylimidazole, bromotetradecane and dicyandiamide silver as raw materials. The structure of the product was characterized and the interaction of[C14mim] [DCA] with bovine serum albumin (BSA) was studied. The results showed that 1) The cmc value and Amin value of the mixed system increased with the increase of BSA concentration; 2) The interaction between[C14mim] [DCA] and BSA in the mixed system had an effect on the microenvironment of amino acid residues on BSA, and main influenced the tryptophan (Trp) residue on BSA; 3) The interaction between[C14mim] [DCA] and BSA in the mixed system affectd the hydraulic radius of the system, and with the increase of[C14mim] [DCA] concentration, the hydraulic radius of the[C14mim] [DCA]/BSA system became larger and had an effect on the structure of the BSA——BSA was unfolded.
-
Key words:
- imidazolium-based ionic liquid /
- surfactant /
- bovine serum albumin (BSA) /
- interaction
-
-
[1]
WILDE P, MACKIE A, HUSBAND F, et al. Proteins and emulsifiers at liquid interfaces[J]. Advances in Colloid & Interface Science, 2004, 108(10):63.
-
[2]
XU Q, KEIDERLING T A. Effect of sodium dodecyl sulfate on folding and thermal stability of acid-denatured cytochrome c:a spectroscopic approach[J]. Protein Science, 2010, 13(11):2949.
-
[3]
HONDA C, KAMIZONO H, MATSUMOTO K, et al. Studies on bovine serumalbumin-sodium dodecyl sulfate complexes using pyrene fluorescence probe and 5-doxylstearic acid spin probe[J]. Journal of Colloid and Interface Science, 2004, 278(2):310.
-
[4]
VALSTAR A,ALMGREN M,BROWN W,et al.The interaction of bovine serum albumin with surfactants studied by light scattering[J]. Langmuir, 2000, 16(3):922.
-
[5]
GELAMO E L, TABAK M. Spectroscopic studies on the interaction of bovine (BSA) and human (HSA) serum albumins with ionic surfactants[J]. Spectrochimica Acta Part A Molecular & Biomolecular Spectroscopy, 2000, 56(11):2255.
-
[6]
史兴旺. 新颖表面活性剂对牛血清蛋白(BSA)结构的影响研究[D]. 济南:山东大学, 2008.
-
[7]
ZAMORA R,HIDALGO F J.Comparative methyl linoleate and methyl linolenate oxidation in the presence of bovine serum albumin at several lipid/protein ratios[J].Journal of Agricultural and Food Chemistry, 2003, 51(16):4661.
-
[8]
杨许召,王军,李刚森,等. 离子液体型表面活性剂的研究进展[J]. 日用化学工业, 2009, 39(5):338.
-
[9]
王军,王萍,杨许召,等. 离子液体表面活性剂的合成与应用(Ⅰ)——离子液体表面活性剂的结构和分类[J]. 日用化学工业,2017,47(1):7.
-
[10]
SINGH T,BORAL S,BOHIDAR H B,et al. Interaction of gelatin with room temperature ionic liquids:a detailed physi-cochemical study[J]. Journal of Physial Chemistry B,2010,114(25):8441.
-
[11]
GENG F,ZHENG L,YU L,et al. Interaction of bovine serum albumin and long-chain imidazolium ionic liquid measured by fluorescence spectra and surface tension[J].Process Biochemistry,2010,45(3):306.
-
[12]
YAN H,WU J,DAI G,et al. Interaction mechanisms of ionic liquids[Cnmim]Br (n=4,6,8,10) with bovine serum albumin[J]. Journal of Luminescence,2012,132(3):622.
-
[13]
刘梦琳.离子液体与蛋白质相互作用的研究[D]. 沈阳:东北大学,2011.
-
[14]
COOPER A. Thermodynamic analysis of biomolecular interactions[J]. Current Opinion in Chemical Biology,1999,3(5):557.
-
[1]
计量
- PDF下载量: 24
- 文章访问数: 2095
- 引证文献数: 0