Abstract
Elucidation of ligand - macromolecule interactions requires detailed knowledge of energetics of the formed complexes. Spectroscopic methods are most commonly used in characterizing molecular interactions in solution. The methods do not require large quantities of material and most importantly, do not perturb the studied reactions. However, spectroscopic methods absolutely require the determination of the relationship between the observed signal and the degree of binding in order to obtain meaningful interaction parameters. In other words, the meaningful, thermodynamic interaction parameters can be only determined if the relationship between the observed signal and the degree of binding is determined and not assumed, based on an ad hoc model of the relationship. The approaches discussed here allow an experimenter to quantitatively determine the degree of binding and the free ligand concentration, i.e., they enable to construct thermodynamic binding isotherms in a model-independent fashion.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 40-50 |
| Number of pages | 11 |
| Journal | Journal of Molecular Structure |
| Volume | 1077 |
| DOIs | |
| State | Published - Dec 5 2014 |
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Keywords
- Binding isotherms
- Fluorescence
- Spectroscopic titrations
- Thermodynamics
ASJC Scopus subject areas
- Spectroscopy
- Analytical Chemistry
- Inorganic Chemistry
- Organic Chemistry
Cite this
Quantitative thermodynamic analyses of spectroscopic titration curves. / Bujalowski, Wlodzimierz; Jezewska, Maria J.
In: Journal of Molecular Structure, Vol. 1077, 05.12.2014, p. 40-50.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Quantitative thermodynamic analyses of spectroscopic titration curves
AU - Bujalowski, Wlodzimierz
AU - Jezewska, Maria J.
PY - 2014/12/5
Y1 - 2014/12/5
N2 - Elucidation of ligand - macromolecule interactions requires detailed knowledge of energetics of the formed complexes. Spectroscopic methods are most commonly used in characterizing molecular interactions in solution. The methods do not require large quantities of material and most importantly, do not perturb the studied reactions. However, spectroscopic methods absolutely require the determination of the relationship between the observed signal and the degree of binding in order to obtain meaningful interaction parameters. In other words, the meaningful, thermodynamic interaction parameters can be only determined if the relationship between the observed signal and the degree of binding is determined and not assumed, based on an ad hoc model of the relationship. The approaches discussed here allow an experimenter to quantitatively determine the degree of binding and the free ligand concentration, i.e., they enable to construct thermodynamic binding isotherms in a model-independent fashion.
AB - Elucidation of ligand - macromolecule interactions requires detailed knowledge of energetics of the formed complexes. Spectroscopic methods are most commonly used in characterizing molecular interactions in solution. The methods do not require large quantities of material and most importantly, do not perturb the studied reactions. However, spectroscopic methods absolutely require the determination of the relationship between the observed signal and the degree of binding in order to obtain meaningful interaction parameters. In other words, the meaningful, thermodynamic interaction parameters can be only determined if the relationship between the observed signal and the degree of binding is determined and not assumed, based on an ad hoc model of the relationship. The approaches discussed here allow an experimenter to quantitatively determine the degree of binding and the free ligand concentration, i.e., they enable to construct thermodynamic binding isotherms in a model-independent fashion.
KW - Binding isotherms
KW - Fluorescence
KW - Spectroscopic titrations
KW - Thermodynamics
UR - http://www.scopus.com/inward/record.url?scp=84907677832&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84907677832&partnerID=8YFLogxK
U2 - 10.1016/j.molstruc.2014.04.041
DO - 10.1016/j.molstruc.2014.04.041
M3 - Article
VL - 1077
SP - 40
EP - 50
JO - Journal of Molecular Structure
JF - Journal of Molecular Structure
SN - 0022-2860
ER -