1B21: Deletion Of A Buried Salt Bridge In Barnase
reference: A structural double-mutant cycle: estimating the strength of a buried salt bridge in barnase., Vaughan CK, Harryson P, Buckle AM, Fersht AR, Acta Crystallogr D Biol Crystallogr. 2002 Apr;58(Pt 4):591-600. Epub 2002, Mar 22. PMID: 11914482

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