3CMZ:
reference: Genetic and structural characterization of an L201P global suppressor substitution in TEM-1 beta-lactamase., Marciano DC, Pennington JM, Wang X, Wang J, Chen Y, Thomas VL, Shoichet BK, Palzkill T, J Mol Biol. 2008 Dec 5;384(1):151-64. Epub 2008 Sep 16. PMID: 18822298

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