2MNH:
reference: Measuring membrane protein bond orientations in nanodiscs via residual dipolar couplings., Bibow S, Carneiro MG, Sabo TM, Schwiegk C, Becker S, Riek R, Lee D, Protein Sci. 2014 Jul;23(7):851-6. doi: 10.1002/pro.2482. Epub 2014 May 6. PMID: 24752984

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