163L: Control Of Enzyme Activity By An Engineered Disulfide Bond
reference: Alanine scanning mutagenesis of the alpha-helix 115-123 of phage T4 lysozyme: effects on structure, stability and the binding of solvent., Blaber M, Baase WA, Gassner N, Matthews BW, J Mol Biol. 1995 Feb 17;246(2):317-30. PMID: 7869383

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