3GEE:
reference: Kissing G domains of MnmE monitored by X-ray crystallography and pulse electron paramagnetic resonance spectroscopy., Meyer S, Bohme S, Kruger A, Steinhoff HJ, Klare JP, Wittinghofer A, PLoS Biol. 2009 Oct;7(10):e1000212. Epub 2009 Oct 6. PMID: 19806182

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