Abstract
A method for incorporating dipolar coupling restraints into structure calculations is described which follows closely on methodology that has been recently presented for orienting peptide planes using dipolar couplings [Mueller et al. (2000) J. Mol. Biol., 300, 197–212] and is specifically developed for use in cases of an axially symmetric alignment tensor. Modeling studies on an all α-helical protein, farnesyl diphosphate synthase, establish the utility of the approach. A global fold of the 370-residue maltose binding protein in complex with β-cyclodextrin is obtained from experimentally derived restraints. The average pairwise rmsd values between the N- and C-terminal domains in this NMR structure and the corresponding regions in the X-ray structure of the protein are 2.8 and 3.1 Å, respectively.
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Mueller, G.A., Choy, W., Skrynnikov, N.R. et al. A method for incorporating dipolar couplings into structure calculations in cases of (near) axial symmetry of alignment. J Biomol NMR 18, 183–188 (2000). https://doi.org/10.1023/A:1026788430236
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DOI: https://doi.org/10.1023/A:1026788430236