2GZU:
reference: High-resolution structure determination of the CylR2 homodimer using paramagnetic relaxation enhancement and structure-based prediction of molecular alignment., Rumpel S, Becker S, Zweckstetter M, J Biomol NMR. 2008 Jan;40(1):1-13. Epub 2007 Nov 20. PMID: 18026911

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