Tracking alignment from the moment of inertia tensor (TRAMITE) of biomolecules in neutral dilute liquid crystal solutions

被引:60
作者
Azurmendi, HF [1 ]
Bush, CA [1 ]
机构
[1] Univ Maryland Baltimore Cty, Dept Chem & Biochem, Baltimore, MD 21250 USA
关键词
D O I
10.1021/ja017524z
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
NMR residual dipolar couplings between couple of nuclei PQ, 1DPQ, measured on neutral dilute liquid crystal solutions, provide valuable long-range structural information of biomolecules. An accurate and simple method for the prediction of the alignment produced as consequence of sterical interactions between the solute and the bicelles is proposed called TRacking Alignment from Moment of Inertia TensorTRAMITE. The method use the information encoded in the moment of inertia of the molecules to calculate the orientation tensor and predict the 1DPQ values. Examples on proteins and oligosaccharides are presented which cover a wide range of sizes and shapes, along with a scheme for the application of the method to the analysis of flexible molecules. Copyright © 2002 American Chemical Society.
引用
收藏
页码:2426 / 2427
页数:2
相关论文
共 11 条
[1]   Comparison of aqueous molecular dynamics with NMR relaxation and residual dipolar couplings favors internal motion in a mannose oligosaccharide [J].
Almond, A ;
Bunkenborg, J ;
Franch, T ;
Gotfredsen, CH ;
Duus, JO .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2001, 123 (20) :4792-4802
[2]   Conformational studies of Lewis X and Lewis A trisaccharides using NMR residual dipolar couplings [J].
Azurmendi, HF ;
Martin-Pastor, M ;
Bush, CA .
BIOPOLYMERS, 2002, 63 (02) :89-98
[3]   Measurement of residual dipolar couplings of macromolecules aligned in the nematic phase of a colloidal suspension of rod-shaped viruses [J].
Clore, GM ;
Starich, MR ;
Gronenborn, AM .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1998, 120 (40) :10571-10572
[4]   The use of residual dipolar coupling in concert with backbone relaxation rates to identify conformational exchange by NMR [J].
de Alba, E ;
Baber, JL ;
Tjandra, N .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1999, 121 (17) :4282-4283
[5]   An analytical solution to the problem of the orientation of rigid particles by planar obstacles.: Application to membrane systems and to the calculation of dipolar couplings in protein NMR spectroscopy [J].
Fernandes, MX ;
Bernadó, P ;
Pons, M ;
de la Torre, JG .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2001, 123 (48) :12037-12047
[6]   MODEL-FREE APPROACH TO THE INTERPRETATION OF NUCLEAR MAGNETIC-RESONANCE RELAXATION IN MACROMOLECULES .1. THEORY AND RANGE OF VALIDITY [J].
LIPARI, G ;
SZABO, A .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1982, 104 (17) :4546-4559
[7]   Order matrix analysis of residual dipolar couplings using singular value decomposition [J].
Losonczi, JA ;
Andrec, M ;
Fischer, MWF ;
Prestegard, JH .
JOURNAL OF MAGNETIC RESONANCE, 1999, 138 (02) :334-342
[8]   Conformational studies of human milk oligosaccharides using 1H-13C one-bond NMR residual dipolar couplings [J].
Martin-Pastor, M ;
Bush, CA .
BIOCHEMISTRY, 2000, 39 (16) :4674-4683
[9]   RECENT RESULTS IN FIELD OF LIQUID CRYSTALS [J].
SAUPE, A .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 1968, 7 (02) :97-&
[10]   Direct measurement of distances and angles in biomolecules by NMR in a dilute liquid crystalline medium [J].
Tjandra, N ;
Bax, A .
SCIENCE, 1997, 278 (5340) :1111-1114