4MJO:
reference: Determination of Protein-Ligand Binding Constants of a Cooperatively Regulated Tetrameric Enzyme Using Electrospray Mass Spectrometry., Cubrilovic D, Haap W, Barylyuk K, Ruf A, Badertscher M, Gubler M, Tetaz T, Joseph C, Benz J, Zenobi R, ACS Chem Biol. 2013 Oct 15. PMID: 24128068

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