| 2WOK: reference: Crystal Structures of an Oligopeptide-Binding Protein from the Biosynthetic Pathway of the beta-Lactamase Inhibitor Clavulanic Acid., Mackenzie AK, Valegard K, Iqbal A, Caines ME, Kershaw NJ, Jensen SE, Schofield CJ, Andersson I, J Mol Biol. 2009 Nov 24. PMID: 19941870 |
This OCA 
Structure page
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(documentation).