2JQR:
reference: Dynamics in a pure encounter complex of two proteins studied by solution scattering and paramagnetic NMR spectroscopy., Xu X, Reinle W, Hannemann F, Konarev PV, Svergun DI, Bernhardt R, Ubbink M, J Am Chem Soc. 2008 May 21;130(20):6395-403. Epub 2008 Apr 26. PMID: 18439013

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