New methods of structure refinement for macromolecular structure determination by NMR.
basic_science · Level V
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- Record sourced from PubMed, PMID 9600889.
- Also identified by PMC identifier 34492.
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Abstract
Recent advances in multidimensional NMR methodology have permitted solution structures of proteins in excess of 250 residues to be solved. In this paper, we discuss several methods of structure refinement that promise to increase the accuracy of macromolecular structures determined by NMR. These methods include the use of a conformational database potential and direct refinement against three-bond coupling constants, secondary 13C shifts, 1H shifts, T1/T2 ratios, and residual dipolar couplings. The latter two measurements provide long range restraints that are not accessible by other solution NMR parameters.
Medical subject headings
- Models, Molecular
- Protein Conformation
- Software