HU Yamin, LU Junliang, WANG Xingming, et al. Study on the Interaction Mode between 4-Benzyloxyphenol and Herring Sperm DNA[J]. Acta Scientiarum Naturalium Universitatis SunYatseni, 2014,53(3):85-90.
HU Yamin, LU Junliang, WANG Xingming, et al. Study on the Interaction Mode between 4-Benzyloxyphenol and Herring Sperm DNA[J]. Acta Scientiarum Naturalium Universitatis SunYatseni, 2014,53(3):85-90.DOI:
J/mol,结果表明该反应为焓驱动。综合实验结果确定了PBP与 DNA 的作用方式为部分嵌插以及静电作用。
Abstract
The mechanism of interaction between 4-Benzyloxyphenol(PBP) and herring sperm DNA was studied using fluorescence spectroscopy and viscosity analysis in a Tris-HCl solution (pH =7.4). Using mole ration method
the mole ration between PBP and DNA was determined to be 2.Using the thermodynamic analysis
the binding constant of PBP interaction with DNA was determined to be K
θ
300.15K
= 2.16×10
5
L/mol
and the corresponding thermodynamic parameters were Δ
r
H
θ
m
=-6.18×10
4
J/mol,Δ
r
S
θ
m
=-1.05×10
3
J/(mol·K).The result suggested that enthalpy was the driven force in the reaction.The interaction of PBP and DNA was derived from partial intercalation and electrostatic interaction.