3UY6:
reference: An amino acid position at crossroads of evolution of protein function: antibiotic sensor domain of BlaR1 protein from Staphylococcus aureus versus clasS D beta-lactamases., Kumarasiri M, Llarrull LI, Borbulevych O, Fishovitz J, Lastochkin E, Baker BM, Mobashery S, J Biol Chem. 2012 Mar 9;287(11):8232-41. Epub 2012 Jan 18. PMID: 22262858

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