A minimal protein folding model to measure hydrophobic and CH-π effects on interactions between nonpolar surfaces in water

被引:82
作者
Bhayana, Brijesh [1 ]
Wilcox, Craig S. [1 ]
机构
[1] Univ Pittsburgh, Dept Chem, Pittsburgh, PA 15260 USA
关键词
conformation analysis; Gibbs energy hydrophobic; interactions; protein folding; solvent effects;
D O I
10.1002/anie.200700932
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
(Figure Presented) In the balance: A synthetic molecule that exhibits two-state folding behavior in water is described. Quantitative experiments reveal that the microscopic hydrophobic effect is similar in magnitude to the CH-π, interaction. These forces may therefore be equally important in the folding of aromatic-rich regions of proteins. The method allows a new approach to the direct measurement of excess surface energy associated with nonpolar surfaces. © 2007 Wiley-VCH Verlag GmbH & Co. KGaA.
引用
收藏
页码:6833 / 6836
页数:4
相关论文
共 78 条
[51]   Interactions with aromatic rings in chemical and biological recognition [J].
Meyer, EA ;
Castellano, RK ;
Diederich, F .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2003, 42 (11) :1210-1250
[52]   PALLADIUM-CATALYZED CROSS-COUPLING REACTIONS OF ORGANOBORON COMPOUNDS [J].
MIYAURA, N ;
SUZUKI, A .
CHEMICAL REVIEWS, 1995, 95 (07) :2457-2483
[53]   Elimination of a misfolded folding intermediate by a single point mutation [J].
Mogensen, JE ;
Ipsen, H ;
Holm, J ;
Otzen, DE .
BIOCHEMISTRY, 2004, 43 (12) :3357-3367
[54]  
MOWBRAY MMS, 1994, J MOL BIOL, V235, P709
[55]   Theoretical studies of the Wilcox molecular torsion balance. Is the edge-to-face aromatic interaction important? [J].
Nakamura, K ;
Houk, KN .
ORGANIC LETTERS, 1999, 1 (13) :2049-2051
[56]   SEARCHING FOR MINIMUM INCREMENTS OF HYDROPHOBIC COLLAPSE - FLEXIBLE DINAPHTHYL CARBOXYLATES [J].
NEWCOMB, LF ;
HAQUE, TS ;
GELLMAN, SH .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1995, 117 (24) :6509-6519
[57]   Concerning the effects of aromatic ring fluorination on the cation-π interaction and other molecular recognition phenomena in aqueous media [J].
Ngola, SM ;
Dougherty, DA .
JOURNAL OF ORGANIC CHEMISTRY, 1998, 63 (14) :4566-4567
[58]   Halogen bonding: A new interaction for liquid crystal formation [J].
Nguyen, HL ;
Horton, PN ;
Hursthouse, MB ;
Legon, AC ;
Bruce, DW .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2004, 126 (01) :16-17
[59]   CH/π hydrogen bonds in crystals [J].
Nishio, M .
CRYSTENGCOMM, 2004, 6 :130-158
[60]   TETRAHEDRON REPORT NUMBER-378 - THE CH/PI INTERACTION - SIGNIFICANCE IN MOLECULAR RECOGNITION [J].
NISHIO, M ;
UMEZAWA, Y ;
HIROTA, M ;
TAKEUCHI, Y .
TETRAHEDRON, 1995, 51 (32) :8665-8701