2FWL:
reference: The Electron Transfer Complex between Cytochrome c552 and the CuA Domain of the Thermus thermophilus ba3 Oxidase: A COMBINED NMR AND COMPUTATIONAL APPROACH., Muresanu L, Pristovsek P, Lohr F, Maneg O, Mukrasch MD, Ruterjans H, Ludwig B, Lucke C, J Biol Chem. 2006 May 19;281(20):14503-13. Epub 2006 Mar 22. PMID: 16554303

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