5U9U:
reference: D-Cysteine Ligands Control Metal Geometries within de Novo Designed Three-Stranded Coiled Coils., Pecoraro VL, Ruckthong L, Peacock AF, Pascoe CE, Hemmingsen L, Stuckey JA, Chemistry. 2017 Apr 6. doi: 10.1002/chem.201700660. PMID: 28384393

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