Binding of doxyl stearic spin labels to human serum albumin: an EPR study.
Binding of doxyl stearic spin labels to human serum albumin: an EPR study.
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硬脂酸自旋标签与人血清白蛋白的结合:一项 EPR 研究。
DOI:
10.1021/jp5068928
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发表时间:
2014
期刊:
影响因子:
--
通讯作者:
G. Bačić
中科院分区:
文献类型:
--
作者:
A. Pavićević;A. Popović;M. Mojović;Snežana V Šušnjar;G. Bačić
The binding of spin-labeled fatty acids (SLFAs) to the human serum albumin (HSA) examined by electron paramagnetic resonance (EPR) spectroscopy was studied to evaluate the potential of the HSA/SLFA/EPR technique as a biomarking tool for cancer. A comparative study was performed on two spin labels with nitroxide groups attached at opposite ends of the fatty acid (FA) chain, 5-doxyl stearic (5-DS) and 16-doxyl stearic (16-DS) acid. The effects of incubation time, different [SLFA]/[HSA] molar ratios, ethanol, and temperature showed that the position of the nitroxide group produces certain differences in binding between the two SLFAs. Spectra for different [SLFA]/[HSA] molar ratios were decomposed into two spectral components, which correspond to the weakly and strongly bound SLFAs. The reduction of SLFA with ascorbate showed the existence of a two component process, fast and slow, confirming the decomposition results. Warfarin has no effect on the binding of the two SLFAs, whereas ibuprofen significantly decreases the binding of 5-DS and has no effect on 16-DS. Together, the results of this study indicate that both SLFAs, 5-DS and 16-DS, should be used for the study of HSA conformational changes in blood induced by various medical conditions.
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DOI:
10.1016/0167-4889(86)90073-x
发表时间:
1986-08
期刊:
Biochimica et biophysica acta
影响因子:
--
作者:
H. Swartz;M. Sentjurc;P. D. Morse
通讯作者:
H. Swartz;M. Sentjurc;P. D. Morse
影响因子:
5.6
作者:
Simard, Jeffrey R.;Zunszain, Patricia A.;Curry, Stephen
通讯作者:
Curry, Stephen
影响因子:
3.9
作者:
Sentjurc,M;Bacic,G;Swartz,HM
通讯作者:
Swartz,HM
影响因子:
2.9
作者:
PerkinsJr,RC;Abumrad,N;Balasubramanian,K;Dalton,LR;Beth,AH;Park,JH;Park,CR
通讯作者:
Park,CR
DOI:
10.1073/pnas.91.5.1667
发表时间:
1994-03-01
影响因子:
11.1
作者:
ALTENBACH, C;GREENHALGH, DA;HUBBELL, WL
通讯作者:
HUBBELL, WL