1BOX:
reference: Contribution of a conserved asparagine to the conformational stability of ribonucleases Sa, Ba, and T1., Hebert EJ, Giletto A, Sevcik J, Urbanikova L, Wilson KS, Dauter Z, Pace CN, Biochemistry 1998 Nov 17;37(46):16192-200. PMID: 9819211

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