کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10822753 | 1061703 | 2005 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Weak alignment NMR: a hawk-eyed view of biomolecular structure
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موضوعات مرتبط
علوم زیستی و بیوفناوری
بیوشیمی، ژنتیک و زیست شناسی مولکولی
زیست شیمی
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چکیده انگلیسی
Imposing a very slight deviation from the isotropic random distribution of macromolecules in solution in an NMR sample tube permits the measurement of residual internuclear dipolar couplings (RDCs). Such interactions are very sensitive functions of the time-averaged orientation of the corresponding internuclear vectors and thereby offer highly precise structural information. In recent years, advances have been made both in the technology to measure RDCs and in the computational procedures that integrate this information in the structure determination process. The exceptional precision with which RDCs can be measured under weakly aligned conditions is also starting to reveal the mostly, but not universally, subtle effects of internal protein dynamics. Importantly, RDCs potentially can reveal motions taking place on a timescale slower than rotational diffusion and analysis is uniquely sensitive to the direction of motion, not just its amplitude.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Current Opinion in Structural Biology - Volume 15, Issue 5, October 2005, Pages 563-570
Journal: Current Opinion in Structural Biology - Volume 15, Issue 5, October 2005, Pages 563-570
نویسندگان
Ad Bax, Alexander Grishaev,