Fluorescence studies of protein thermostability in ionic liquids

被引:230
作者
Baker, SN
McCleskey, TM
Pandey, S
Baker, GA
机构
[1] Los Alamos Natl Lab, Biosci Div, Los Alamos, NM 87545 USA
[2] Los Alamos Natl Lab, Div Chem, Los Alamos, NM 87545 USA
[3] New Mexico Inst Min & Technol, Dept Chem, Socorro, NM 87801 USA
关键词
D O I
10.1039/b401304m
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Using the single tryptophan residue in the sweet protein monellin as a spectroscopic handle, we show the extreme thermodynamic stabilization offered by an ionic liquid; T-u similar to105 degreesC in [C(4)mpy][Tf2N] compared to 40 degreesC in bulk water.
引用
收藏
页码:940 / 941
页数:2
相关论文
共 36 条
[1]  
[Anonymous], 2003, ACS S SER
[2]   Noncontact two-color luminescence thermometry based on intramolecular luminophore cyclization within an ionic liquid [J].
Baker, GA ;
Baker, SN ;
McCleskey, TM .
CHEMICAL COMMUNICATIONS, 2003, (23) :2932-2933
[3]   The cybotactic region surrounding fluorescent probes dissolved in 1-butyl-3-methylimidazolium hexafluorophosphate: Effects of temperature and added carbon dioxide [J].
Baker, SN ;
Baker, GA ;
Kane, MA ;
Bright, FV .
JOURNAL OF PHYSICAL CHEMISTRY B, 2001, 105 (39) :9663-9668
[4]   Effects of solubilized water on the relaxation dynamics surrounding 6-propionyl-2-(N,N-dimethylamino)naphthalene dissolved in 1-butyl-3-methylimidazolium hexafluorophosphate at 298 K [J].
Baker, SN ;
Baker, GA ;
Munson, CA ;
Chen, F ;
Bukowski, EJ ;
Cartwright, AN ;
Bright, FV .
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2003, 42 (25) :6457-6463
[5]   New hot/cold stage for performing microfluorimetric measurements continuously between -120 and +100 °C [J].
Baker, SN ;
Baker, GA ;
Munson, CA ;
Bright, FV .
APPLIED SPECTROSCOPY, 2001, 55 (09) :1273-1277
[6]   Loss of cytochrome c Fe(III)/Fe(II) redox couple in ionic liquids [J].
Compton, DL ;
Laszlo, JA .
JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 2003, 553 :187-190
[7]   At low water activity α-chymotrypsin is more active in an ionic liquid than in non-ionic organic solvents [J].
Eckstein, M ;
Sesing, M ;
Kragl, U ;
Adlercreutz, P .
BIOTECHNOLOGY LETTERS, 2002, 24 (11) :867-872
[8]   THE USE OF FLUORESCENCE METHODS TO MONITOR UNFOLDING TRANSITIONS IN PROTEINS [J].
EFTINK, MR .
BIOPHYSICAL JOURNAL, 1994, 66 (02) :482-501
[9]   Correlating protein structure and protein fluorescence [J].
Engelborghs, Y .
JOURNAL OF FLUORESCENCE, 2003, 13 (01) :9-16
[10]   Enzymatic catalysis of formation of Z-aspartame in ionic liquid -: An alternative to enzymatic catalysis in organic solvents [J].
Erbeldinger, M ;
Mesiano, AJ ;
Russell, AJ .
BIOTECHNOLOGY PROGRESS, 2000, 16 (06) :1129-1131