Terahertz dielectric assay of solution phase protein binding

被引:59
作者
Chen, Jing-Yin [1 ]
Knab, J. R. [1 ]
Ye, Shuji [1 ]
He, Yunfen [1 ]
Markelz, A. G. [1 ]
机构
[1] SUNY Buffalo, Dept Phys, Buffalo, NY 14260 USA
基金
美国国家科学基金会;
关键词
D O I
10.1063/1.2748852
中图分类号
O59 [应用物理学];
学科分类号
摘要
The authors demonstrate a method for rapid determination of protein-ligand binding on solution phase samples using terahertz dielectric spectroscopy. Measurements were performed using terahertz time domain spectroscopy on aqueous solutions below the liquid-solid transition for water. Small ligand binding sensitivity was demonstrated using triacetylglucosamine and hen egg white lysozyme with a decrease in dielectric response with binding. The magnitude of the change increases with frequency. (c) 2007 American Institute of Physics.
引用
收藏
页数:3
相关论文
共 9 条
[1]   Direct determination of vibrational density of states change on ligand binding to a protein [J].
Balog, E ;
Becker, T ;
Oettl, M ;
Lechner, R ;
Daniel, R ;
Finney, J ;
Smith, JC .
PHYSICAL REVIEW LETTERS, 2004, 93 (02) :028103-1
[2]   Label-free probing of the binding state of DNA by time-domain terahertz sensing [J].
Brucherseifer, M ;
Nagel, M ;
Bolivar, PH ;
Kurz, H ;
Bosserhoff, A ;
Büttner, R .
APPLIED PHYSICS LETTERS, 2000, 77 (24) :4049-4051
[3]   Large oxidation dependence observed in terahertz dielectric response for cytochrome c [J].
Chen, JY ;
Knab, JR ;
Cerne, J ;
Markelz, AG .
PHYSICAL REVIEW E, 2005, 72 (04)
[4]   Protease inhibitors and their peptidomimetic derivatives as potential drugs [J].
Fear, Georgie ;
Komarnytsky, Slavko ;
Raskin, Ilya .
PHARMACOLOGY & THERAPEUTICS, 2007, 113 (02) :354-368
[5]   Solute-induced retardation of water dynamics probed directly by terahertz spectroscopy [J].
Heugen, U. ;
Schwaab, G. ;
Bruendermann, E. ;
Heyden, M. ;
Yu, X. ;
Leitner, D. M. ;
Havenith, M. .
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2006, 103 (33) :12301-12306
[6]   Hydration dependence of conformational dielectric relaxation of lysozyme [J].
Knab, J ;
Chen, JY ;
Markelz, A .
BIOPHYSICAL JOURNAL, 2006, 90 (07) :2576-2581
[7]  
LEHRER SS, 1967, J BIOL CHEM, V242, P4644
[8]   Label-free amplified bioaffinity detection using terahertz wave technology [J].
Menikh, A ;
Mickan, SP ;
Liu, HB ;
MacColl, R ;
Zhang, XC .
BIOSENSORS & BIOELECTRONICS, 2004, 20 (03) :658-662
[9]   Probing the collective vibrational dynamics of a protein in liquid water by terahertz absorption spectroscopy [J].
Xu, J ;
Plaxco, KW ;
Allen, SJ .
PROTEIN SCIENCE, 2006, 15 (05) :1175-1181