Modulation of flavin recognition and redox properties through donor atom-π interactions

被引:80
作者
Breinlinger, EC [1 ]
Keenan, CJ [1 ]
Rotello, VM [1 ]
机构
[1] Univ Massachusetts, Dept Chem, Amherst, MA 01003 USA
关键词
D O I
10.1021/ja9809556
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Computational and experimental model studies establish the importance of donor atom-pi bonding on the recognition and function of flavins. This noncovalent interaction arises from electrostatic attraction between electron-rich (donor) atoms and electron-deficient aromatic systems. The electrostatic origin of this bonding was verified through comparison of binding of model receptors to flavin in both oxidized (Fl(ox)) and radical anion (Fl(rad)(-)) forms: Interaction was strongest with the electron-poor Fl(ox) and was greatly attenuated with the comparatively electron-rich Fl(rad)(-). Other factors determining the magnitudes of these donor-pi interaction are the size and polarizability of the donor atom.
引用
收藏
页码:8606 / 8609
页数:4
相关论文
共 37 条
[1]   An attractive interaction between the pi-cloud of C6F6 and electron-donor atoms [J].
Alkorta, I ;
Rozas, I ;
Elguero, J .
JOURNAL OF ORGANIC CHEMISTRY, 1997, 62 (14) :4687-4691
[2]   MODEL SYSTEMS FOR FLAVOENZYME ACTIVITY - STABILIZATION OF THE FLAVIN RADICAL-ANION THROUGH SPECIFIC HYDROGEN-BOND INTERACTIONS [J].
BREINLINGER, E ;
NIEMZ, A ;
ROTELLO, VM .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1995, 117 (19) :5379-5380
[3]   THROUGH-SPACE POLAR-PI EFFECTS ON THE ACIDITY AND HYDROGEN-BONDING CAPACITY OF CARBOXYLIC-ACIDS [J].
CHEN, CT ;
SIEGEL, JS .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1994, 116 (13) :5959-5960
[4]   THE STRUCTURE OF FLAVOCYTOCHROME-C SULFIDE DEHYDROGENASE FROM A PURPLE PHOTOTROPHIC BACTERIUM [J].
CHEN, ZW ;
KOH, M ;
VANDRIESSCHE, G ;
VANBEEUMEN, JJ ;
BARTSCH, RG ;
MEYER, TE ;
CUSANOVICH, MA ;
MATHEWS, FS .
SCIENCE, 1994, 266 (5184) :430-432
[5]   Molecular dynamics potential of mean force calculations: A study of the toluene-ammonium pi-cation interactions [J].
Chipot, C ;
Maigret, B ;
Pearlman, DA ;
Kollman, PA .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1996, 118 (12) :2998-3005
[6]   Using the electrostatic field effect to design a new class of inhibitors for cysteine proteases [J].
Conroy, JL ;
Sanders, TC ;
Seto, CT .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1997, 119 (18) :4285-4291
[7]   MOLECULAR, RECOGNITION OF CARBOHYDRATES - STRONG BINDING OF ALKYL GLYCOSIDES BY PHOSPHONATE DERIVATIVES [J].
DAS, G ;
HAMILTON, AD .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1994, 116 (24) :11139-11140
[8]   Electrochemical control of recognition processes. A three-component molecular switch [J].
Deans, R ;
Niemz, A ;
Breinlinger, EC ;
Rotello, VM .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1997, 119 (44) :10863-10864
[9]   COMPLEXATION OF NEUTRAL MOLECULES BY CYCLOPHANE HOSTS [J].
DIEDERICH, F .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION IN ENGLISH, 1988, 27 (03) :362-386
[10]   Cation-pi interactions in chemistry and biology: A new view of benzene, Phe, Tyr, and Trp [J].
Dougherty, DA .
SCIENCE, 1996, 271 (5246) :163-168