1LCM:
reference: Conformational studies of microcystin-LR using NMR spectroscopy and molecular dynamics calculations., Trogen GB, Annila A, Eriksson J, Kontteli M, Meriluoto J, Sethson I, Zdunek J, Edlund U, Biochemistry 1996 Mar 12;35(10):3197-205. PMID: 8605154

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