1ZLO:
reference: Primary and 3-D modelled structures of two cyclotides from Viola odorata., Svangard E, Goransson U, Smith D, Verma C, Backlund A, Bohlin L, Claeson P, Phytochemistry. 2003 Sep;64(1):135-42. PMID: 12946412

This OCA Structure page
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