2N7J:
reference: Side Chain Conformational Distributions of a Small Protein Derived from Model-Free Analysis of a Large Set of Residual Dipolar Couplings., Li F, Grishaev A, Ying J, Bax A, J Am Chem Soc. 2015 Nov 25;137(46):14798-811. doi: 10.1021/jacs.5b10072. Epub, 2015 Nov 17. PMID: 26523828

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